/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:21:31,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:21:31,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:21:31,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:21:31,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:21:31,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:21:31,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:21:31,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:21:31,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:21:31,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:21:31,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:21:31,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:21:31,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:21:31,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:21:31,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:21:31,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:21:31,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:21:31,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:21:31,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:21:31,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:21:31,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:21:31,385 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:21:31,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:21:31,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:21:31,390 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:21:31,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:21:31,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:21:31,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:21:31,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:21:31,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:21:31,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:21:31,392 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:21:31,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:21:31,392 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:21:31,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:21:31,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:21:31,393 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:21:31,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:21:31,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:21:31,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:21:31,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:21:31,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:21:31,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:21:31,395 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:21:31,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:21:31,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:21:31,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:21:31,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:21:31,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:21:31,847 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:21:31,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2021-02-24 04:21:31,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6750aac5f/8f079f07c2e24064880738baa3b6d371/FLAGfa9993958 [2021-02-24 04:21:32,475 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:21:32,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2021-02-24 04:21:32,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6750aac5f/8f079f07c2e24064880738baa3b6d371/FLAGfa9993958 [2021-02-24 04:21:32,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6750aac5f/8f079f07c2e24064880738baa3b6d371 [2021-02-24 04:21:32,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:21:32,874 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:21:32,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:21:32,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:21:32,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:21:32,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:21:32" (1/1) ... [2021-02-24 04:21:32,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a56f619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:32, skipping insertion in model container [2021-02-24 04:21:32,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:21:32" (1/1) ... [2021-02-24 04:21:32,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:21:32,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:21:33,121 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i[341,354] [2021-02-24 04:21:33,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:21:33,212 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:21:33,223 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i[341,354] [2021-02-24 04:21:33,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:21:33,256 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:21:33,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33 WrapperNode [2021-02-24 04:21:33,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:21:33,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:21:33,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:21:33,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:21:33,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33" (1/1) ... [2021-02-24 04:21:33,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33" (1/1) ... [2021-02-24 04:21:33,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33" (1/1) ... [2021-02-24 04:21:33,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33" (1/1) ... [2021-02-24 04:21:33,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33" (1/1) ... [2021-02-24 04:21:33,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33" (1/1) ... [2021-02-24 04:21:33,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33" (1/1) ... [2021-02-24 04:21:33,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:21:33,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:21:33,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:21:33,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:21:33,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33" (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 [2021-02-24 04:21:33,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:21:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:21:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:21:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-24 04:21:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-02-24 04:21:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-02-24 04:21:33,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2021-02-24 04:21:33,425 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2021-02-24 04:21:33,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2021-02-24 04:21:33,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2021-02-24 04:21:33,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:21:33,425 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-02-24 04:21:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:21:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:21:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:21:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:21:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:21:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-24 04:21:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:21:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-02-24 04:21:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:21:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-02-24 04:21:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-02-24 04:21:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2021-02-24 04:21:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2021-02-24 04:21:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2021-02-24 04:21:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2021-02-24 04:21:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:21:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 04:21:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 04:21:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:21:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:21:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:21:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:21:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:21:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:21:33,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:21:33,907 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 04:21:33,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:21:33 BoogieIcfgContainer [2021-02-24 04:21:33,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:21:33,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:21:33,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:21:33,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:21:33,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:21:32" (1/3) ... [2021-02-24 04:21:33,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74536a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:21:33, skipping insertion in model container [2021-02-24 04:21:33,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:33" (2/3) ... [2021-02-24 04:21:33,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74536a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:21:33, skipping insertion in model container [2021-02-24 04:21:33,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:21:33" (3/3) ... [2021-02-24 04:21:33,924 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2021-02-24 04:21:33,937 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:21:33,942 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:21:33,960 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:21:33,989 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:21:33,989 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:21:33,990 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:21:33,990 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:21:33,990 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:21:33,990 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:21:33,991 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:21:33,991 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:21:34,008 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2021-02-24 04:21:34,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-02-24 04:21:34,018 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:34,019 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] [2021-02-24 04:21:34,020 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:34,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:34,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1636215635, now seen corresponding path program 1 times [2021-02-24 04:21:34,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:34,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766502382] [2021-02-24 04:21:34,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:34,114 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:21:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:34,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:34,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:34,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:21:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:34,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:34,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:21:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:34,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:34,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:21:34,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:21:34,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:34,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:21:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:34,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:34,689 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-02-24 04:21:34,692 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size 9 [2021-02-24 04:21:34,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:21:34,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:21:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:34,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:34,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:34,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:21:34,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766502382] [2021-02-24 04:21:34,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:21:34,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 04:21:34,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054617798] [2021-02-24 04:21:34,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 04:21:34,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:21:34,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 04:21:34,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:21:34,819 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 10 states. [2021-02-24 04:21:35,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:21:35,533 INFO L93 Difference]: Finished difference Result 130 states and 142 transitions. [2021-02-24 04:21:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 04:21:35,535 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2021-02-24 04:21:35,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:21:35,550 INFO L225 Difference]: With dead ends: 130 [2021-02-24 04:21:35,550 INFO L226 Difference]: Without dead ends: 108 [2021-02-24 04:21:35,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:21:35,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-02-24 04:21:35,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2021-02-24 04:21:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-24 04:21:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 111 transitions. [2021-02-24 04:21:35,649 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 111 transitions. Word has length 43 [2021-02-24 04:21:35,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:21:35,652 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 111 transitions. [2021-02-24 04:21:35,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 04:21:35,653 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 111 transitions. [2021-02-24 04:21:35,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-24 04:21:35,659 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:35,659 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] [2021-02-24 04:21:35,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:21:35,660 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:35,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:35,660 INFO L82 PathProgramCache]: Analyzing trace with hash 234532648, now seen corresponding path program 1 times [2021-02-24 04:21:35,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:35,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013070417] [2021-02-24 04:21:35,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:35,669 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:21:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:35,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:35,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:35,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:21:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:35,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:35,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:21:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:35,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:35,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:21:35,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:21:35,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:35,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:21:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:35,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:35,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:21:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:35,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:35,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-24 04:21:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:35,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:35,947 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-02-24 04:21:35,947 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size 9 [2021-02-24 04:21:35,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:21:35,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:21:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:35,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:35,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-24 04:21:35,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013070417] [2021-02-24 04:21:35,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:21:35,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 04:21:35,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174197025] [2021-02-24 04:21:35,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 04:21:35,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:21:35,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 04:21:35,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:21:35,996 INFO L87 Difference]: Start difference. First operand 104 states and 111 transitions. Second operand 10 states. [2021-02-24 04:21:36,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:21:36,660 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2021-02-24 04:21:36,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-24 04:21:36,662 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2021-02-24 04:21:36,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:21:36,665 INFO L225 Difference]: With dead ends: 128 [2021-02-24 04:21:36,665 INFO L226 Difference]: Without dead ends: 117 [2021-02-24 04:21:36,667 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 [2021-02-24 04:21:36,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-02-24 04:21:36,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2021-02-24 04:21:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-02-24 04:21:36,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 118 transitions. [2021-02-24 04:21:36,692 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 118 transitions. Word has length 58 [2021-02-24 04:21:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:21:36,692 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 118 transitions. [2021-02-24 04:21:36,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 04:21:36,693 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 118 transitions. [2021-02-24 04:21:36,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-02-24 04:21:36,695 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:36,696 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] [2021-02-24 04:21:36,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:21:36,696 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:36,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:36,697 INFO L82 PathProgramCache]: Analyzing trace with hash 2070130097, now seen corresponding path program 1 times [2021-02-24 04:21:36,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:36,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730106822] [2021-02-24 04:21:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:36,700 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:21:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:21:36,729 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:21:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:21:36,753 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:21:36,801 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:21:36,801 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:21:36,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:21:36,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:21:36 BoogieIcfgContainer [2021-02-24 04:21:36,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:21:36,823 INFO L168 Benchmark]: Toolchain (without parser) took 3984.26 ms. Allocated memory was 175.1 MB in the beginning and 213.9 MB in the end (delta: 38.8 MB). Free memory was 132.5 MB in the beginning and 90.6 MB in the end (delta: 41.9 MB). Peak memory consumption was 82.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:36,823 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 175.1 MB. Free memory was 149.4 MB in the beginning and 149.3 MB in the end (delta: 133.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:21:36,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.12 ms. Allocated memory is still 175.1 MB. Free memory was 158.4 MB in the beginning and 147.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:36,825 INFO L168 Benchmark]: Boogie Preprocessor took 52.33 ms. Allocated memory is still 175.1 MB. Free memory was 147.4 MB in the beginning and 158.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:36,826 INFO L168 Benchmark]: RCFGBuilder took 598.01 ms. Allocated memory is still 175.1 MB. Free memory was 158.2 MB in the beginning and 130.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:36,826 INFO L168 Benchmark]: TraceAbstraction took 2908.75 ms. Allocated memory was 175.1 MB in the beginning and 213.9 MB in the end (delta: 38.8 MB). Free memory was 130.2 MB in the beginning and 90.6 MB in the end (delta: 39.6 MB). Peak memory consumption was 80.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:36,830 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 175.1 MB. Free memory was 149.4 MB in the beginning and 149.3 MB in the end (delta: 133.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 378.12 ms. Allocated memory is still 175.1 MB. Free memory was 158.4 MB in the beginning and 147.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 52.33 ms. Allocated memory is still 175.1 MB. Free memory was 147.4 MB in the beginning and 158.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 598.01 ms. Allocated memory is still 175.1 MB. Free memory was 158.2 MB in the beginning and 130.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2908.75 ms. Allocated memory was 175.1 MB in the beginning and 213.9 MB in the end (delta: 38.8 MB). Free memory was 130.2 MB in the beginning and 90.6 MB in the end (delta: 39.6 MB). Peak memory consumption was 80.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call to reach_error is reachable a call to reach_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] 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: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 196 SDtfs, 307 SDslu, 559 SDs, 0 SdLazy, 700 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...