/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 0.1.25-72570d3 [2020-08-22 19:04:49,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:04:49,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:04:49,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:04:49,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:04:49,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:04:49,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:04:49,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:04:49,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:04:49,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:04:49,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:04:49,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:04:49,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:04:49,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:04:49,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:04:49,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:04:49,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:04:49,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:04:49,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:04:49,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:04:49,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:04:49,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:04:49,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:04:49,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:04:49,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:04:49,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 19:04:49,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 19:04:49,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 19:04:49,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 19:04:49,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 19:04:49,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 19:04:49,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 19:04:49,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 19:04:49,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:04:49,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:04:49,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:04:49,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:04:49,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:04:49,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:04:49,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:04:49,998 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:04:49,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:04:49,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:04:49,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:04:49,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:04:49,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:04:49,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:04:50,000 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:04:50,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:04:50,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:04:50,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:04:50,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:04:50,001 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:04:50,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:04:50,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:04:50,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:04:50,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:04:50,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:04:50,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:04:50,002 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:04:50,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:04:50,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:04:50,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:04:50,328 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:04:50,329 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:04:50,330 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-08-22 19:04:50,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb669c08/50038511eb4241439d5fcdfcb247f688/FLAG512e00dd3 [2020-08-22 19:04:50,867 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:04:50,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-08-22 19:04:50,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb669c08/50038511eb4241439d5fcdfcb247f688/FLAG512e00dd3 [2020-08-22 19:04:51,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb669c08/50038511eb4241439d5fcdfcb247f688 [2020-08-22 19:04:51,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:04:51,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:04:51,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:04:51,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:04:51,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:04:51,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:04:51" (1/1) ... [2020-08-22 19:04:51,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60dd4c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51, skipping insertion in model container [2020-08-22 19:04:51,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:04:51" (1/1) ... [2020-08-22 19:04:51,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:04:51,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:04:51,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:04:51,546 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:04:51,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:04:51,668 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:04:51,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51 WrapperNode [2020-08-22 19:04:51,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:04:51,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:04:51,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:04:51,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:04:51,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51" (1/1) ... [2020-08-22 19:04:51,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51" (1/1) ... [2020-08-22 19:04:51,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51" (1/1) ... [2020-08-22 19:04:51,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51" (1/1) ... [2020-08-22 19:04:51,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51" (1/1) ... [2020-08-22 19:04:51,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51" (1/1) ... [2020-08-22 19:04:51,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51" (1/1) ... [2020-08-22 19:04:51,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:04:51,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:04:51,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:04:51,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:04:51,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51" (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 [2020-08-22 19:04:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:04:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:04:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-22 19:04:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-22 19:04:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-22 19:04:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-08-22 19:04:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-08-22 19:04:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-08-22 19:04:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-08-22 19:04:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:04:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-22 19:04:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:04:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:04:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-22 19:04:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 19:04:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-22 19:04:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 19:04:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-22 19:04:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-22 19:04:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-08-22 19:04:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-08-22 19:04:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-08-22 19:04:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-08-22 19:04:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 19:04:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 19:04:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 19:04:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:04:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:04:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:04:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 19:04:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:04:52,213 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:04:52,213 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 19:04:52,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:04:52 BoogieIcfgContainer [2020-08-22 19:04:52,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:04:52,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:04:52,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:04:52,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:04:52,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:04:51" (1/3) ... [2020-08-22 19:04:52,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd300cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:04:52, skipping insertion in model container [2020-08-22 19:04:52,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:51" (2/3) ... [2020-08-22 19:04:52,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd300cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:04:52, skipping insertion in model container [2020-08-22 19:04:52,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:04:52" (3/3) ... [2020-08-22 19:04:52,227 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-08-22 19:04:52,242 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:04:52,250 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:04:52,265 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:04:52,289 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:04:52,289 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:04:52,289 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:04:52,289 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:04:52,290 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:04:52,290 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:04:52,290 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:04:52,290 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:04:52,308 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2020-08-22 19:04:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-22 19:04:52,323 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:04:52,325 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] [2020-08-22 19:04:52,325 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:04:52,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:04:52,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1030867920, now seen corresponding path program 1 times [2020-08-22 19:04:52,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:04:52,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557102269] [2020-08-22 19:04:52,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:04:52,396 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:04:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:52,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:04:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:52,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 19:04:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:52,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:04:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:52,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:04:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:53,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:04:53,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557102269] [2020-08-22 19:04:53,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:04:53,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:04:53,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362459763] [2020-08-22 19:04:53,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:04:53,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:04:53,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:04:53,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:04:53,034 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 10 states. [2020-08-22 19:04:53,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:04:53,679 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2020-08-22 19:04:53,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 19:04:53,681 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-08-22 19:04:53,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:04:53,695 INFO L225 Difference]: With dead ends: 124 [2020-08-22 19:04:53,695 INFO L226 Difference]: Without dead ends: 103 [2020-08-22 19:04:53,699 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 [2020-08-22 19:04:53,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-08-22 19:04:53,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2020-08-22 19:04:53,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-08-22 19:04:53,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 106 transitions. [2020-08-22 19:04:53,768 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 106 transitions. Word has length 38 [2020-08-22 19:04:53,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:04:53,772 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 106 transitions. [2020-08-22 19:04:53,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:04:53,773 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 106 transitions. [2020-08-22 19:04:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 19:04:53,778 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:04:53,778 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] [2020-08-22 19:04:53,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:04:53,780 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:04:53,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:04:53,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1857982353, now seen corresponding path program 1 times [2020-08-22 19:04:53,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:04:53,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464407483] [2020-08-22 19:04:53,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:04:53,785 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:04:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:53,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:04:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:53,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 19:04:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:53,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:04:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:53,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:04:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:53,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 19:04:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:54,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:04:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:54,038 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 19:04:54,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464407483] [2020-08-22 19:04:54,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:04:54,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:04:54,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939240509] [2020-08-22 19:04:54,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:04:54,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:04:54,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:04:54,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:04:54,044 INFO L87 Difference]: Start difference. First operand 99 states and 106 transitions. Second operand 10 states. [2020-08-22 19:04:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:04:54,715 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2020-08-22 19:04:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 19:04:54,715 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2020-08-22 19:04:54,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:04:54,718 INFO L225 Difference]: With dead ends: 123 [2020-08-22 19:04:54,718 INFO L226 Difference]: Without dead ends: 112 [2020-08-22 19:04:54,720 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 [2020-08-22 19:04:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-08-22 19:04:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2020-08-22 19:04:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-08-22 19:04:54,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 113 transitions. [2020-08-22 19:04:54,744 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 113 transitions. Word has length 53 [2020-08-22 19:04:54,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:04:54,744 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 113 transitions. [2020-08-22 19:04:54,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:04:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 113 transitions. [2020-08-22 19:04:54,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-08-22 19:04:54,747 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:04:54,748 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] [2020-08-22 19:04:54,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:04:54,748 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:04:54,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:04:54,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1972643668, now seen corresponding path program 1 times [2020-08-22 19:04:54,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:04:54,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993625470] [2020-08-22 19:04:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:04:54,752 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:04:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:04:54,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:04:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:04:54,804 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:04:54,842 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 19:04:54,842 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 19:04:54,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:04:54,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:04:54 BoogieIcfgContainer [2020-08-22 19:04:54,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:04:54,867 INFO L168 Benchmark]: Toolchain (without parser) took 3573.39 ms. Allocated memory was 138.4 MB in the beginning and 248.0 MB in the end (delta: 109.6 MB). Free memory was 102.0 MB in the beginning and 162.9 MB in the end (delta: -60.9 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:54,868 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 19:04:54,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.60 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 180.5 MB in the end (delta: -78.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:54,870 INFO L168 Benchmark]: Boogie Preprocessor took 46.98 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 178.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:54,871 INFO L168 Benchmark]: RCFGBuilder took 502.38 ms. Allocated memory is still 201.9 MB. Free memory was 178.1 MB in the beginning and 150.2 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:54,872 INFO L168 Benchmark]: TraceAbstraction took 2644.59 ms. Allocated memory was 201.9 MB in the beginning and 248.0 MB in the end (delta: 46.1 MB). Free memory was 149.5 MB in the beginning and 162.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:54,876 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 374.60 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 180.5 MB in the end (delta: -78.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.98 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 178.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 502.38 ms. Allocated memory is still 201.9 MB. Free memory was 178.1 MB in the beginning and 150.2 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2644.59 ms. Allocated memory was 201.9 MB in the beginning and 248.0 MB in the end (delta: 46.1 MB). Free memory was 149.5 MB in the beginning and 162.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 32.7 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: 2.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.3s, 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...