/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:39:55,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:39:55,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:39:55,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:39:55,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:39:55,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:39:55,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:39:55,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:39:55,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:39:55,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:39:55,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:39:55,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:39:55,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:39:55,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:39:55,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:39:55,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:39:55,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:39:55,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:39:55,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:39:55,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:39:55,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:39:55,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:39:55,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:39:55,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:39:55,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 16:39:55,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 16:39:55,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 16:39:55,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 16:39:55,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 16:39:55,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 16:39:55,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 16:39:55,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 16:39:55,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 16:39:55,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 16:39:55,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 16:39:55,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 16:39:55,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 16:39:55,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 16:39:55,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:39:55,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:39:55,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:39:55,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:39:55,963 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:39:55,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:39:55,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:39:55,966 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:39:55,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:39:55,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:39:55,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:39:55,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:39:55,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:39:55,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:39:55,967 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:39:55,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:39:55,968 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:39:55,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:39:55,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:39:55,968 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:39:55,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:39:55,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:39:55,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:39:55,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:39:55,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:39:55,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:39:55,970 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:39:56,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:39:56,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:39:56,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:39:56,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:39:56,458 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:39:56,459 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-09-04 16:39:56,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dbb83220b/0f6f52e431a14ea2b2ec8f33a1e1350c/FLAG950a55e65 [2020-09-04 16:39:57,226 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:39:57,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-09-04 16:39:57,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dbb83220b/0f6f52e431a14ea2b2ec8f33a1e1350c/FLAG950a55e65 [2020-09-04 16:39:57,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dbb83220b/0f6f52e431a14ea2b2ec8f33a1e1350c [2020-09-04 16:39:57,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:39:57,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:39:57,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:39:57,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:39:57,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:39:57,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:39:57" (1/1) ... [2020-09-04 16:39:57,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ea52f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57, skipping insertion in model container [2020-09-04 16:39:57,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:39:57" (1/1) ... [2020-09-04 16:39:57,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:39:57,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:39:57,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:39:57,781 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:39:57,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:39:57,833 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:39:57,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57 WrapperNode [2020-09-04 16:39:57,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:39:57,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:39:57,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:39:57,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:39:57,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57" (1/1) ... [2020-09-04 16:39:57,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57" (1/1) ... [2020-09-04 16:39:57,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57" (1/1) ... [2020-09-04 16:39:57,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57" (1/1) ... [2020-09-04 16:39:57,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57" (1/1) ... [2020-09-04 16:39:57,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57" (1/1) ... [2020-09-04 16:39:57,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57" (1/1) ... [2020-09-04 16:39:57,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:39:57,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:39:57,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:39:57,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:39:57,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57" (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 [2020-09-04 16:39:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:39:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:39:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-04 16:39:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-04 16:39:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-04 16:39:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-09-04 16:39:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-09-04 16:39:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-09-04 16:39:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-09-04 16:39:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:39:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-04 16:39:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:39:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:39:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-04 16:39:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 16:39:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-04 16:39:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 16:39:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-04 16:39:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-04 16:39:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-09-04 16:39:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-09-04 16:39:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-09-04 16:39:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-09-04 16:39:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:39:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 16:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 16:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:39:58,477 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:39:58,478 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:39:58,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:39:58 BoogieIcfgContainer [2020-09-04 16:39:58,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:39:58,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:39:58,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:39:58,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:39:58,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:39:57" (1/3) ... [2020-09-04 16:39:58,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f04c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:39:58, skipping insertion in model container [2020-09-04 16:39:58,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:57" (2/3) ... [2020-09-04 16:39:58,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f04c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:39:58, skipping insertion in model container [2020-09-04 16:39:58,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:39:58" (3/3) ... [2020-09-04 16:39:58,500 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-09-04 16:39:58,509 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:39:58,519 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:39:58,542 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:39:58,569 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:39:58,569 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:39:58,569 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:39:58,569 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:39:58,569 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:39:58,570 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:39:58,570 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:39:58,570 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:39:58,592 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2020-09-04 16:39:58,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-04 16:39:58,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:39:58,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:39:58,609 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:39:58,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:39:58,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1030867920, now seen corresponding path program 1 times [2020-09-04 16:39:58,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:39:58,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184286891] [2020-09-04 16:39:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:39:58,709 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:39:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:58,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:39:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:59,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:39:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:59,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 16:39:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:59,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 16:39:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:39:59,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184286891] [2020-09-04 16:39:59,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:39:59,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 16:39:59,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539160155] [2020-09-04 16:39:59,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 16:39:59,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:39:59,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 16:39:59,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-04 16:39:59,318 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 10 states. [2020-09-04 16:39:59,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:39:59,984 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2020-09-04 16:39:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 16:39:59,986 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-09-04 16:39:59,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:00,002 INFO L225 Difference]: With dead ends: 124 [2020-09-04 16:40:00,002 INFO L226 Difference]: Without dead ends: 103 [2020-09-04 16:40:00,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-09-04 16:40:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-04 16:40:00,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2020-09-04 16:40:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-04 16:40:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 106 transitions. [2020-09-04 16:40:00,084 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 106 transitions. Word has length 38 [2020-09-04 16:40:00,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:00,087 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 106 transitions. [2020-09-04 16:40:00,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 16:40:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 106 transitions. [2020-09-04 16:40:00,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-04 16:40:00,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:00,092 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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] [2020-09-04 16:40:00,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:40:00,093 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:00,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:00,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1857982353, now seen corresponding path program 1 times [2020-09-04 16:40:00,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:00,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565479492] [2020-09-04 16:40:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:00,098 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:00,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:00,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:40:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:00,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 16:40:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:00,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 16:40:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:00,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 16:40:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:00,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 16:40:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-04 16:40:00,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565479492] [2020-09-04 16:40:00,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:00,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 16:40:00,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614990410] [2020-09-04 16:40:00,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 16:40:00,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:00,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 16:40:00,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-04 16:40:00,439 INFO L87 Difference]: Start difference. First operand 99 states and 106 transitions. Second operand 10 states. [2020-09-04 16:40:01,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:01,176 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2020-09-04 16:40:01,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 16:40:01,177 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2020-09-04 16:40:01,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:01,180 INFO L225 Difference]: With dead ends: 123 [2020-09-04 16:40:01,180 INFO L226 Difference]: Without dead ends: 112 [2020-09-04 16:40:01,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2020-09-04 16:40:01,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-04 16:40:01,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2020-09-04 16:40:01,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-09-04 16:40:01,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 113 transitions. [2020-09-04 16:40:01,216 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 113 transitions. Word has length 53 [2020-09-04 16:40:01,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:01,218 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 113 transitions. [2020-09-04 16:40:01,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 16:40:01,218 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 113 transitions. [2020-09-04 16:40:01,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-04 16:40:01,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:01,225 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:40:01,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:40:01,226 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:01,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:01,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1972643668, now seen corresponding path program 1 times [2020-09-04 16:40:01,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:01,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901774484] [2020-09-04 16:40:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:01,235 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:40:01,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:40:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:40:01,374 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:40:01,437 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:40:01,438 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:40:01,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:40:01,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:40:01 BoogieIcfgContainer [2020-09-04 16:40:01,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:40:01,480 INFO L168 Benchmark]: Toolchain (without parser) took 4010.46 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 102.8 MB in the beginning and 161.3 MB in the end (delta: -58.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:01,481 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 145.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:40:01,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.90 ms. Allocated memory is still 145.8 MB. Free memory was 102.6 MB in the beginning and 90.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:01,483 INFO L168 Benchmark]: Boogie Preprocessor took 138.00 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 90.8 MB in the beginning and 180.1 MB in the end (delta: -89.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:01,484 INFO L168 Benchmark]: RCFGBuilder took 515.64 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 152.6 MB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:01,485 INFO L168 Benchmark]: TraceAbstraction took 2987.54 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 151.9 MB in the beginning and 161.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:01,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 145.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 362.90 ms. Allocated memory is still 145.8 MB. Free memory was 102.6 MB in the beginning and 90.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.00 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 90.8 MB in the beginning and 180.1 MB in the end (delta: -89.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 515.64 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 152.6 MB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2987.54 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 151.9 MB in the beginning and 161.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 33.6 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, 106 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 190 SDtfs, 329 SDslu, 478 SDs, 0 SdLazy, 599 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...