/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 0.1.25-267fbe0 [2020-07-17 13:28:18,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:28:18,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:28:18,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:28:18,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:28:18,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:28:18,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:28:18,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:28:18,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:28:18,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:28:18,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:28:18,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:28:18,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:28:18,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:28:18,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:28:18,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:28:18,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:28:18,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:28:18,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:28:18,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:28:18,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:28:18,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:28:18,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:28:18,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:28:18,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:28:18,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 13:28:18,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 13:28:18,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 13:28:18,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 13:28:18,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 13:28:18,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 13:28:18,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 13:28:18,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 13:28:18,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:28:18,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:28:18,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:28:18,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:28:18,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:28:18,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:28:18,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:28:18,667 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:28:18,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:28:18,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:28:18,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:28:18,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:28:18,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:28:18,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:28:18,669 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:28:18,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:28:18,669 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:28:18,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:28:18,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:28:18,670 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:28:18,670 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:28:18,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:28:18,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:28:18,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:28:18,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:28:18,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:28:18,671 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:28:18,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:28:18,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:28:18,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:28:18,960 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:28:18,960 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:28:18,961 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-17 13:28:19,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403de2669/f7b40eeee0bf4e79964d9cdab50e437b/FLAGf73bd1322 [2020-07-17 13:28:19,535 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:28:19,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-17 13:28:19,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403de2669/f7b40eeee0bf4e79964d9cdab50e437b/FLAGf73bd1322 [2020-07-17 13:28:19,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403de2669/f7b40eeee0bf4e79964d9cdab50e437b [2020-07-17 13:28:19,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:28:19,880 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:28:19,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:28:19,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:28:19,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:28:19,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:28:19" (1/1) ... [2020-07-17 13:28:19,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5996813a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:19, skipping insertion in model container [2020-07-17 13:28:19,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:28:19" (1/1) ... [2020-07-17 13:28:19,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:28:19,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:28:20,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:28:20,169 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:28:20,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:28:20,333 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:28:20,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20 WrapperNode [2020-07-17 13:28:20,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:28:20,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:28:20,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:28:20,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:28:20,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20" (1/1) ... [2020-07-17 13:28:20,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20" (1/1) ... [2020-07-17 13:28:20,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20" (1/1) ... [2020-07-17 13:28:20,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20" (1/1) ... [2020-07-17 13:28:20,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20" (1/1) ... [2020-07-17 13:28:20,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20" (1/1) ... [2020-07-17 13:28:20,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20" (1/1) ... [2020-07-17 13:28:20,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:28:20,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:28:20,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:28:20,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:28:20,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20" (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 [2020-07-17 13:28:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:28:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:28:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-17 13:28:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-07-17 13:28:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-07-17 13:28:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-07-17 13:28:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-07-17 13:28:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-07-17 13:28:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-07-17 13:28:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:28:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-07-17 13:28:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:28:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:28:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-17 13:28:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-17 13:28:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-07-17 13:28:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 13:28:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-07-17 13:28:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-07-17 13:28:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-07-17 13:28:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-07-17 13:28:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-07-17 13:28:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-07-17 13:28:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 13:28:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 13:28:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 13:28:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:28:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:28:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:28:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 13:28:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:28:20,900 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:28:20,900 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 13:28:20,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:28:20 BoogieIcfgContainer [2020-07-17 13:28:20,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:28:20,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:28:20,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:28:20,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:28:20,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:28:19" (1/3) ... [2020-07-17 13:28:20,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6c9de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:28:20, skipping insertion in model container [2020-07-17 13:28:20,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:28:20" (2/3) ... [2020-07-17 13:28:20,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6c9de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:28:20, skipping insertion in model container [2020-07-17 13:28:20,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:28:20" (3/3) ... [2020-07-17 13:28:20,916 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-07-17 13:28:20,926 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:28:20,935 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:28:20,948 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:28:20,966 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:28:20,966 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:28:20,967 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:28:20,967 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:28:20,967 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:28:20,967 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:28:20,967 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:28:20,967 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:28:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2020-07-17 13:28:20,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-17 13:28:20,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:28:20,995 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] [2020-07-17 13:28:20,996 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:28:21,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:28:21,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1030867920, now seen corresponding path program 1 times [2020-07-17 13:28:21,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:28:21,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910754317] [2020-07-17 13:28:21,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:28:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:21,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:28:21,554 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:28:21,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910754317] [2020-07-17 13:28:21,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:28:21,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 13:28:21,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407600593] [2020-07-17 13:28:21,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 13:28:21,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:28:21,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 13:28:21,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-17 13:28:21,581 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 10 states. [2020-07-17 13:28:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:28:22,241 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2020-07-17 13:28:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 13:28:22,243 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-07-17 13:28:22,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:28:22,258 INFO L225 Difference]: With dead ends: 124 [2020-07-17 13:28:22,258 INFO L226 Difference]: Without dead ends: 103 [2020-07-17 13:28:22,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-07-17 13:28:22,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-07-17 13:28:22,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2020-07-17 13:28:22,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-07-17 13:28:22,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 106 transitions. [2020-07-17 13:28:22,386 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 106 transitions. Word has length 38 [2020-07-17 13:28:22,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:28:22,392 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 106 transitions. [2020-07-17 13:28:22,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 13:28:22,392 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 106 transitions. [2020-07-17 13:28:22,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-17 13:28:22,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:28:22,400 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] [2020-07-17 13:28:22,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:28:22,401 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:28:22,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:28:22,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1857982353, now seen corresponding path program 1 times [2020-07-17 13:28:22,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:28:22,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052588887] [2020-07-17 13:28:22,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:28:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:28:22,758 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 13:28:22,759 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:28:22,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052588887] [2020-07-17 13:28:22,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:28:22,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 13:28:22,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720753354] [2020-07-17 13:28:22,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 13:28:22,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:28:22,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 13:28:22,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-17 13:28:22,765 INFO L87 Difference]: Start difference. First operand 99 states and 106 transitions. Second operand 10 states. [2020-07-17 13:28:23,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:28:23,460 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2020-07-17 13:28:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-17 13:28:23,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2020-07-17 13:28:23,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:28:23,465 INFO L225 Difference]: With dead ends: 123 [2020-07-17 13:28:23,466 INFO L226 Difference]: Without dead ends: 112 [2020-07-17 13:28:23,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2020-07-17 13:28:23,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-17 13:28:23,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2020-07-17 13:28:23,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-07-17 13:28:23,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 113 transitions. [2020-07-17 13:28:23,515 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 113 transitions. Word has length 53 [2020-07-17 13:28:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:28:23,516 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 113 transitions. [2020-07-17 13:28:23,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 13:28:23,516 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 113 transitions. [2020-07-17 13:28:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-17 13:28:23,523 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:28:23,524 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] [2020-07-17 13:28:23,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:28:23,528 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:28:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:28:23,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1972643668, now seen corresponding path program 1 times [2020-07-17 13:28:23,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:28:23,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213620985] [2020-07-17 13:28:23,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:28:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:28:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:28:23,650 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:28:23,650 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 13:28:23,651 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 13:28:23,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:28:23,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:28:23 BoogieIcfgContainer [2020-07-17 13:28:23,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:28:23,675 INFO L168 Benchmark]: Toolchain (without parser) took 3795.39 ms. Allocated memory was 144.2 MB in the beginning and 246.9 MB in the end (delta: 102.8 MB). Free memory was 102.6 MB in the beginning and 162.4 MB in the end (delta: -59.8 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2020-07-17 13:28:23,676 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-17 13:28:23,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.16 ms. Allocated memory was 144.2 MB in the beginning and 203.4 MB in the end (delta: 59.2 MB). Free memory was 102.1 MB in the beginning and 181.5 MB in the end (delta: -79.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-07-17 13:28:23,678 INFO L168 Benchmark]: Boogie Preprocessor took 78.54 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 179.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-17 13:28:23,679 INFO L168 Benchmark]: RCFGBuilder took 492.90 ms. Allocated memory is still 203.4 MB. Free memory was 179.4 MB in the beginning and 152.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-07-17 13:28:23,680 INFO L168 Benchmark]: TraceAbstraction took 2765.50 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 151.4 MB in the beginning and 162.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-07-17 13:28:23,684 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 144.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 452.16 ms. Allocated memory was 144.2 MB in the beginning and 203.4 MB in the end (delta: 59.2 MB). Free memory was 102.1 MB in the beginning and 181.5 MB in the end (delta: -79.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.54 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 179.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 492.90 ms. Allocated memory is still 203.4 MB. Free memory was 179.4 MB in the beginning and 152.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2765.50 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 151.4 MB in the beginning and 162.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 32.6 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: 2.6s, 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, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 41 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: 0.1s 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...