/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-b8ad66e [2020-10-23 20:34:13,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:34:13,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:34:13,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 20:34:13,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:34:13,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:34:13,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:34:13,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:34:13,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:34:13,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:34:13,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:34:13,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:34:13,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:34:13,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:34:13,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:34:13,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:34:13,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:34:13,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:34:13,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:34:13,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:34:13,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:34:13,888 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:34:13,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:34:13,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:34:13,891 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:34:13,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:34:13,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:34:13,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:34:13,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:34:13,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:34:13,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:34:13,893 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:34:13,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:34:13,894 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:34:13,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:34:13,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:34:13,895 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:34:13,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:34:13,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:34:13,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:34:13,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:34:13,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:34:13,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:34:13,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:34:14,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:34:14,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:34:14,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:34:14,322 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:34:14,325 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:34:14,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-10-23 20:34:14,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7b1ab237/fe17bda0ae06438b8614ad1910bc799b/FLAGe3f9a8716 [2020-10-23 20:34:15,060 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:34:15,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-10-23 20:34:15,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7b1ab237/fe17bda0ae06438b8614ad1910bc799b/FLAGe3f9a8716 [2020-10-23 20:34:15,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7b1ab237/fe17bda0ae06438b8614ad1910bc799b [2020-10-23 20:34:15,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:34:15,459 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:34:15,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:15,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:34:15,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:34:15,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:15" (1/1) ... [2020-10-23 20:34:15,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f9954f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15, skipping insertion in model container [2020-10-23 20:34:15,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:15" (1/1) ... [2020-10-23 20:34:15,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:34:15,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:34:15,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:15,755 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:34:15,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:15,808 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:34:15,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15 WrapperNode [2020-10-23 20:34:15,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:15,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:34:15,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:34:15,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:34:15,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15" (1/1) ... [2020-10-23 20:34:15,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15" (1/1) ... [2020-10-23 20:34:15,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15" (1/1) ... [2020-10-23 20:34:15,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15" (1/1) ... [2020-10-23 20:34:15,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15" (1/1) ... [2020-10-23 20:34:15,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15" (1/1) ... [2020-10-23 20:34:15,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15" (1/1) ... [2020-10-23 20:34:15,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:34:15,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:34:15,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:34:15,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:34:15,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15" (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 [2020-10-23 20:34:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:34:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:34:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:34:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-23 20:34:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-23 20:34:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-23 20:34:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-10-23 20:34:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-10-23 20:34:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-10-23 20:34:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-10-23 20:34:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:34:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-23 20:34:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:34:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:34:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:34:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:34:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:34:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-23 20:34:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 20:34:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-23 20:34:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:34:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-23 20:34:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-23 20:34:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-10-23 20:34:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-10-23 20:34:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-10-23 20:34:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-10-23 20:34:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:34:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:34:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:34:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:34:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:34:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:34:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:34:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:34:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:34:16,476 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:34:16,477 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:34:16,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:16 BoogieIcfgContainer [2020-10-23 20:34:16,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:34:16,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:34:16,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:34:16,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:34:16,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:34:15" (1/3) ... [2020-10-23 20:34:16,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4557977c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:16, skipping insertion in model container [2020-10-23 20:34:16,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:15" (2/3) ... [2020-10-23 20:34:16,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4557977c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:16, skipping insertion in model container [2020-10-23 20:34:16,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:16" (3/3) ... [2020-10-23 20:34:16,489 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-10-23 20:34:16,501 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:34:16,506 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:34:16,520 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:34:16,544 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:34:16,544 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:34:16,544 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:34:16,544 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:34:16,544 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:34:16,544 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:34:16,545 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:34:16,545 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:34:16,563 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-10-23 20:34:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-23 20:34:16,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:16,574 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] [2020-10-23 20:34:16,575 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:16,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:16,581 INFO L82 PathProgramCache]: Analyzing trace with hash 18993518, now seen corresponding path program 1 times [2020-10-23 20:34:16,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:16,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37155404] [2020-10-23 20:34:16,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:16,672 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:17,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:17,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 20:34:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:17,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:34:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:17,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:34:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:17,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:34:17,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37155404] [2020-10-23 20:34:17,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:17,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:34:17,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746048842] [2020-10-23 20:34:17,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:34:17,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:17,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:34:17,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:34:17,316 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 10 states. [2020-10-23 20:34:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:18,016 INFO L93 Difference]: Finished difference Result 134 states and 147 transitions. [2020-10-23 20:34:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 20:34:18,018 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-10-23 20:34:18,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:18,030 INFO L225 Difference]: With dead ends: 134 [2020-10-23 20:34:18,030 INFO L226 Difference]: Without dead ends: 109 [2020-10-23 20:34:18,033 INFO L677 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 [2020-10-23 20:34:18,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-23 20:34:18,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2020-10-23 20:34:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-23 20:34:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 112 transitions. [2020-10-23 20:34:18,101 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 112 transitions. Word has length 44 [2020-10-23 20:34:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:18,103 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 112 transitions. [2020-10-23 20:34:18,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:34:18,103 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 112 transitions. [2020-10-23 20:34:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-23 20:34:18,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:18,106 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] [2020-10-23 20:34:18,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:34:18,107 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:18,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:18,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1027411211, now seen corresponding path program 1 times [2020-10-23 20:34:18,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:18,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609059953] [2020-10-23 20:34:18,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:18,113 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 20:34:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:34:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:34:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 20:34:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:34:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-23 20:34:18,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609059953] [2020-10-23 20:34:18,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:18,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:34:18,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782202271] [2020-10-23 20:34:18,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:34:18,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:18,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:34:18,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:34:18,476 INFO L87 Difference]: Start difference. First operand 105 states and 112 transitions. Second operand 10 states. [2020-10-23 20:34:19,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:19,241 INFO L93 Difference]: Finished difference Result 130 states and 135 transitions. [2020-10-23 20:34:19,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 20:34:19,242 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2020-10-23 20:34:19,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:19,245 INFO L225 Difference]: With dead ends: 130 [2020-10-23 20:34:19,245 INFO L226 Difference]: Without dead ends: 118 [2020-10-23 20:34:19,247 INFO L677 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 [2020-10-23 20:34:19,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-23 20:34:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2020-10-23 20:34:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-23 20:34:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2020-10-23 20:34:19,275 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 119 transitions. Word has length 59 [2020-10-23 20:34:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:19,276 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 119 transitions. [2020-10-23 20:34:19,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:34:19,276 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 119 transitions. [2020-10-23 20:34:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-23 20:34:19,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:19,279 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] [2020-10-23 20:34:19,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:34:19,280 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:19,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:19,281 INFO L82 PathProgramCache]: Analyzing trace with hash 120025701, now seen corresponding path program 1 times [2020-10-23 20:34:19,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:19,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308948683] [2020-10-23 20:34:19,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:19,285 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:34:19,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:34:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:34:19,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:34:19,392 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:34:19,392 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:34:19,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:34:19,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:34:19 BoogieIcfgContainer [2020-10-23 20:34:19,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:34:19,415 INFO L168 Benchmark]: Toolchain (without parser) took 3960.43 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.3 MB in the beginning and 77.0 MB in the end (delta: 50.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:19,415 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 104.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:34:19,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.89 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 116.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:19,417 INFO L168 Benchmark]: Boogie Preprocessor took 47.77 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 114.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:19,418 INFO L168 Benchmark]: RCFGBuilder took 619.96 ms. Allocated memory is still 151.0 MB. Free memory was 114.1 MB in the beginning and 121.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:19,419 INFO L168 Benchmark]: TraceAbstraction took 2931.12 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 120.4 MB in the beginning and 77.0 MB in the end (delta: 43.5 MB). Peak memory consumption was 74.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:19,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 104.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 343.89 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 116.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.77 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 114.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 619.96 ms. Allocated memory is still 151.0 MB. Free memory was 114.1 MB in the beginning and 121.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2931.12 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 120.4 MB in the beginning and 77.0 MB in the end (delta: 43.5 MB). Peak memory consumption was 74.4 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: 2.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.5s, 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, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s 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...