/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 0.2.0-7d8eed3 [2020-11-07 00:51:58,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:51:58,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:51:59,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:51:59,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:51:59,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:51:59,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:51:59,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:51:59,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:51:59,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:51:59,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:51:59,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:51:59,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:51:59,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:51:59,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:51:59,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:51:59,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:51:59,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:51:59,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:51:59,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:51:59,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:51:59,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:51:59,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:51:59,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:51:59,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:51:59,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:51:59,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:51:59,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:51:59,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:51:59,074 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:51:59,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:51:59,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:51:59,076 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:51:59,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:51:59,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:51:59,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:51:59,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:51:59,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:51:59,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:51:59,078 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:51:59,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:51:59,078 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:51:59,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:51:59,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:51:59,079 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:51:59,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:51:59,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:51:59,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:51:59,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:51:59,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:51:59,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:51:59,080 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:51:59,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:51:59,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:51:59,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:51:59,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:51:59,559 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:51:59,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-11-07 00:51:59,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/070debfec/b837207f1fc84ce7a5c8898017211ba1/FLAG398041b7e [2020-11-07 00:52:00,407 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:52:00,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-11-07 00:52:00,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/070debfec/b837207f1fc84ce7a5c8898017211ba1/FLAG398041b7e [2020-11-07 00:52:00,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/070debfec/b837207f1fc84ce7a5c8898017211ba1 [2020-11-07 00:52:00,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:52:00,797 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:52:00,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:52:00,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:52:00,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:52:00,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:00" (1/1) ... [2020-11-07 00:52:00,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a20cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:00, skipping insertion in model container [2020-11-07 00:52:00,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:00" (1/1) ... [2020-11-07 00:52:00,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:52:00,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:52:01,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:52:01,068 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:52:01,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:52:01,130 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:52:01,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01 WrapperNode [2020-11-07 00:52:01,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:52:01,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:52:01,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:52:01,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:52:01,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01" (1/1) ... [2020-11-07 00:52:01,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01" (1/1) ... [2020-11-07 00:52:01,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01" (1/1) ... [2020-11-07 00:52:01,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01" (1/1) ... [2020-11-07 00:52:01,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01" (1/1) ... [2020-11-07 00:52:01,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01" (1/1) ... [2020-11-07 00:52:01,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01" (1/1) ... [2020-11-07 00:52:01,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:52:01,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:52:01,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:52:01,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:52:01,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01" (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 [2020-11-07 00:52:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:52:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:52:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:52:01,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-11-07 00:52:01,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-11-07 00:52:01,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-11-07 00:52:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-11-07 00:52:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-11-07 00:52:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-11-07 00:52:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-11-07 00:52:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:52:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-11-07 00:52:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:52:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:52:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:52:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:52:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:52:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-11-07 00:52:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 00:52:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-11-07 00:52:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:52:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-11-07 00:52:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-11-07 00:52:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-11-07 00:52:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-11-07 00:52:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-11-07 00:52:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-11-07 00:52:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:52:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:52:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:52:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:52:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:52:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:52:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:52:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:52:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:52:02,197 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:52:02,197 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 00:52:02,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:02 BoogieIcfgContainer [2020-11-07 00:52:02,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:52:02,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:52:02,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:52:02,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:52:02,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:52:00" (1/3) ... [2020-11-07 00:52:02,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ab680f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:02, skipping insertion in model container [2020-11-07 00:52:02,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:01" (2/3) ... [2020-11-07 00:52:02,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ab680f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:02, skipping insertion in model container [2020-11-07 00:52:02,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:02" (3/3) ... [2020-11-07 00:52:02,210 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-11-07 00:52:02,227 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:52:02,231 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:52:02,244 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:52:02,271 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:52:02,271 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:52:02,271 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:52:02,272 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:52:02,272 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:52:02,272 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:52:02,272 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:52:02,272 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:52:02,293 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-11-07 00:52:02,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-07 00:52:02,304 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:02,305 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, 1, 1, 1, 1, 1, 1] [2020-11-07 00:52:02,306 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:02,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:02,313 INFO L82 PathProgramCache]: Analyzing trace with hash 18993518, now seen corresponding path program 1 times [2020-11-07 00:52:02,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:02,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521533080] [2020-11-07 00:52:02,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:02,411 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:02,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:02,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:52:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:02,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:52:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:02,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:52:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:52:03,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521533080] [2020-11-07 00:52:03,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:03,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:52:03,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884070099] [2020-11-07 00:52:03,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:52:03,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:03,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:52:03,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:52:03,039 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 10 states. [2020-11-07 00:52:03,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:03,941 INFO L93 Difference]: Finished difference Result 134 states and 147 transitions. [2020-11-07 00:52:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 00:52:03,943 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-11-07 00:52:03,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:03,956 INFO L225 Difference]: With dead ends: 134 [2020-11-07 00:52:03,957 INFO L226 Difference]: Without dead ends: 109 [2020-11-07 00:52:03,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-11-07 00:52:03,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-07 00:52:04,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2020-11-07 00:52:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-07 00:52:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 112 transitions. [2020-11-07 00:52:04,034 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 112 transitions. Word has length 44 [2020-11-07 00:52:04,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:04,036 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 112 transitions. [2020-11-07 00:52:04,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:52:04,036 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 112 transitions. [2020-11-07 00:52:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-07 00:52:04,039 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:04,040 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] [2020-11-07 00:52:04,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:52:04,040 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:04,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:04,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1027411211, now seen corresponding path program 1 times [2020-11-07 00:52:04,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:04,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057348434] [2020-11-07 00:52:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:04,046 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:04,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:04,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:52:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:04,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:52:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:04,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:52:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:04,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:52:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:04,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:52:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:04,395 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-07 00:52:04,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057348434] [2020-11-07 00:52:04,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:04,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:52:04,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835035274] [2020-11-07 00:52:04,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:52:04,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:04,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:52:04,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:52:04,400 INFO L87 Difference]: Start difference. First operand 105 states and 112 transitions. Second operand 10 states. [2020-11-07 00:52:05,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:05,475 INFO L93 Difference]: Finished difference Result 130 states and 135 transitions. [2020-11-07 00:52:05,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 00:52:05,476 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2020-11-07 00:52:05,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:05,479 INFO L225 Difference]: With dead ends: 130 [2020-11-07 00:52:05,479 INFO L226 Difference]: Without dead ends: 118 [2020-11-07 00:52:05,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2020-11-07 00:52:05,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-07 00:52:05,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2020-11-07 00:52:05,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-07 00:52:05,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2020-11-07 00:52:05,514 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 119 transitions. Word has length 59 [2020-11-07 00:52:05,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:05,515 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 119 transitions. [2020-11-07 00:52:05,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:52:05,515 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 119 transitions. [2020-11-07 00:52:05,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-07 00:52:05,518 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:05,519 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, 1, 1, 1, 1, 1, 1] [2020-11-07 00:52:05,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:52:05,519 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:05,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:05,520 INFO L82 PathProgramCache]: Analyzing trace with hash 120025701, now seen corresponding path program 1 times [2020-11-07 00:52:05,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:05,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574704272] [2020-11-07 00:52:05,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:05,524 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:52:05,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:52:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:52:05,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:52:05,692 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:52:05,692 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:52:05,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:52:05,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:52:05 BoogieIcfgContainer [2020-11-07 00:52:05,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:52:05,720 INFO L168 Benchmark]: Toolchain (without parser) took 4930.01 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 132.1 MB in the beginning and 125.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 39.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:05,721 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:52:05,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.10 ms. Allocated memory is still 155.2 MB. Free memory was 131.5 MB in the beginning and 120.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:05,723 INFO L168 Benchmark]: Boogie Preprocessor took 61.88 ms. Allocated memory is still 155.2 MB. Free memory was 120.3 MB in the beginning and 118.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:05,723 INFO L168 Benchmark]: RCFGBuilder took 1005.11 ms. Allocated memory is still 155.2 MB. Free memory was 118.3 MB in the beginning and 122.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:05,725 INFO L168 Benchmark]: TraceAbstraction took 3514.54 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 121.7 MB in the beginning and 125.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:05,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 329.10 ms. Allocated memory is still 155.2 MB. Free memory was 131.5 MB in the beginning and 120.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.88 ms. Allocated memory is still 155.2 MB. Free memory was 120.3 MB in the beginning and 118.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1005.11 ms. Allocated memory is still 155.2 MB. Free memory was 118.3 MB in the beginning and 122.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3514.54 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 121.7 MB in the beginning and 125.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] struct slot *tmp_slot; [L43] int used_tmp_slot = 0; [L44] int freed_tmp_slot = 1; [L138] CALL ebda_rsrc_controller() [L75] struct hotplug_slot *hp_slot_ptr; [L77] struct bus_info *bus_info_ptr1; [L78] int rc; [L80] CALL, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) [L49] EXPR, FCALL calloc(1, size) [L49] return calloc(1, size); [L80] RET, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) [L80] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L81] COND FALSE !(!hp_slot_ptr) [L85] hp_slot_ptr->b = 5 [L87] CALL, EXPR kzalloc(sizeof(*tmp_slot), 1) [L49] EXPR, FCALL calloc(1, size) [L49] return calloc(1, size); [L87] RET, EXPR kzalloc(sizeof(*tmp_slot), 1) [L87] tmp_slot = kzalloc(sizeof(*tmp_slot), 1) [L89] COND FALSE !(!tmp_slot) [L94] used_tmp_slot = 0 [L95] freed_tmp_slot = 0 [L97] tmp_slot->a = 2 [L98] tmp_slot->b = 3 [L100] CALL, EXPR ibmphp_find_same_bus_num() [L58] COND TRUE __VERIFIER_nondet_int() [L59] return 0; [L100] RET, EXPR ibmphp_find_same_bus_num() [L100] bus_info_ptr1 = ibmphp_find_same_bus_num() [L101] COND TRUE !bus_info_ptr1 [L102] rc = -3 [L129] EXPR hp_slot_ptr->private [L129] CALL kfree(hp_slot_ptr->private) [L52] COND FALSE !(p!=0 && p==tmp_slot) [L129] RET kfree(hp_slot_ptr->private) [L134] return rc; [L138] RET ebda_rsrc_controller() [L139] COND TRUE !used_tmp_slot [L140] (freed_tmp_slot) ? (0) : __blast_assert () [L140] CALL __blast_assert () [L9] CALL reach_error() [L3] __assert_fail("0", "rule57_ebda_blast_2.i", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 198 SDtfs, 307 SDslu, 566 SDs, 0 SdLazy, 700 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, 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...