/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-b7b32d2 [2021-02-22 01:56:22,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:56:22,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:56:22,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:56:22,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:56:22,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:56:22,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:56:22,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:56:22,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:56:22,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:56:22,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:56:22,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:56:22,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:56:22,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:56:22,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:56:22,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:56:22,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:56:22,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:56:22,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:56:22,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:56:22,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:56:22,499 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:56:22,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:56:22,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:56:22,504 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:56:22,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:56:22,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:56:22,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:56:22,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:56:22,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:56:22,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:56:22,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:56:22,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:56:22,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:56:22,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:56:22,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:56:22,508 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:56:22,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:56:22,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:56:22,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:56:22,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:56:22,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:56:22,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:56:22,510 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:56:22,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:56:22,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:56:22,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:56:22,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:56:22,986 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:56:22,987 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:56:22,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2021-02-22 01:56:23,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ef17522/7d0818b20a684f6ab37827f45fcb602f/FLAG37a13a6cd [2021-02-22 01:56:23,703 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:56:23,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2021-02-22 01:56:23,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ef17522/7d0818b20a684f6ab37827f45fcb602f/FLAG37a13a6cd [2021-02-22 01:56:24,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ef17522/7d0818b20a684f6ab37827f45fcb602f [2021-02-22 01:56:24,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:56:24,040 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:56:24,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:56:24,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:56:24,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:56:24,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:56:24" (1/1) ... [2021-02-22 01:56:24,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab60789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24, skipping insertion in model container [2021-02-22 01:56:24,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:56:24" (1/1) ... [2021-02-22 01:56:24,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:56:24,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:56:24,238 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] [2021-02-22 01:56:24,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:56:24,291 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:56:24,305 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] [2021-02-22 01:56:24,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:56:24,340 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:56:24,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24 WrapperNode [2021-02-22 01:56:24,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:56:24,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:56:24,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:56:24,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:56:24,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24" (1/1) ... [2021-02-22 01:56:24,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24" (1/1) ... [2021-02-22 01:56:24,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24" (1/1) ... [2021-02-22 01:56:24,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24" (1/1) ... [2021-02-22 01:56:24,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24" (1/1) ... [2021-02-22 01:56:24,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24" (1/1) ... [2021-02-22 01:56:24,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24" (1/1) ... [2021-02-22 01:56:24,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:56:24,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:56:24,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:56:24,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:56:24,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24" (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 [2021-02-22 01:56:24,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:56:24,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:56:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:56:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-22 01:56:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-02-22 01:56:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-02-22 01:56:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2021-02-22 01:56:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2021-02-22 01:56:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2021-02-22 01:56:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2021-02-22 01:56:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:56:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-02-22 01:56:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:56:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:56:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:56:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:56:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:56:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-22 01:56:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-22 01:56:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-02-22 01:56:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 01:56:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-02-22 01:56:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-02-22 01:56:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2021-02-22 01:56:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2021-02-22 01:56:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2021-02-22 01:56:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2021-02-22 01:56:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:56:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 01:56:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 01:56:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:56:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:56:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:56:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:56:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:56:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:56:25,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:56:25,225 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:56:25,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:56:25 BoogieIcfgContainer [2021-02-22 01:56:25,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:56:25,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:56:25,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:56:25,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:56:25,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:56:24" (1/3) ... [2021-02-22 01:56:25,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff5c559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:56:25, skipping insertion in model container [2021-02-22 01:56:25,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:56:24" (2/3) ... [2021-02-22 01:56:25,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff5c559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:56:25, skipping insertion in model container [2021-02-22 01:56:25,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:56:25" (3/3) ... [2021-02-22 01:56:25,237 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2021-02-22 01:56:25,244 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:56:25,249 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:56:25,270 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:56:25,295 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:56:25,295 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:56:25,295 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:56:25,295 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:56:25,296 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:56:25,296 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:56:25,296 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:56:25,296 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:56:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2021-02-22 01:56:25,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-02-22 01:56:25,325 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:56:25,326 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] [2021-02-22 01:56:25,326 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:56:25,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:56:25,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1636215635, now seen corresponding path program 1 times [2021-02-22 01:56:25,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:56:25,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710735671] [2021-02-22 01:56:25,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:56:25,427 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:56:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:25,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:25,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:25,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:25,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:25,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:56:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:25,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:25,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:25,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-22 01:56:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:25,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:25,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:25,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:25,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:56:25,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:25,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:56:25,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:25,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:25,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:56:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:25,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:25,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:25,888 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-02-22 01:56:25,889 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size 9 [2021-02-22 01:56:25,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:25,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 01:56:26,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:56:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:26,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:26,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:26,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:56:26,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710735671] [2021-02-22 01:56:26,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:56:26,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 01:56:26,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005035260] [2021-02-22 01:56:26,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 01:56:26,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:56:26,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 01:56:26,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:56:26,101 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 10 states. [2021-02-22 01:56:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:56:26,725 INFO L93 Difference]: Finished difference Result 130 states and 142 transitions. [2021-02-22 01:56:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 01:56:26,726 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2021-02-22 01:56:26,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:56:26,738 INFO L225 Difference]: With dead ends: 130 [2021-02-22 01:56:26,738 INFO L226 Difference]: Without dead ends: 108 [2021-02-22 01:56:26,742 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 [2021-02-22 01:56:26,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-02-22 01:56:26,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2021-02-22 01:56:26,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-22 01:56:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 111 transitions. [2021-02-22 01:56:26,811 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 111 transitions. Word has length 43 [2021-02-22 01:56:26,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:56:26,813 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 111 transitions. [2021-02-22 01:56:26,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 01:56:26,814 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 111 transitions. [2021-02-22 01:56:26,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-22 01:56:26,816 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:56:26,817 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] [2021-02-22 01:56:26,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:56:26,817 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:56:26,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:56:26,818 INFO L82 PathProgramCache]: Analyzing trace with hash 234532648, now seen corresponding path program 1 times [2021-02-22 01:56:26,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:56:26,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441968740] [2021-02-22 01:56:26,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:56:26,823 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:56:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:26,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:26,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:26,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:26,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:26,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:56:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:26,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:26,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:26,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-22 01:56:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:26,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:26,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:26,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:26,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:56:26,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:26,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:56:26,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:26,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:56:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:27,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:27,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:27,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:56:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:27,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:27,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:27,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-22 01:56:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:27,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:27,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:27,042 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-02-22 01:56:27,043 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size 9 [2021-02-22 01:56:27,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:27,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 01:56:27,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:56:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:56:27,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:56:27,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:56:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-22 01:56:27,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441968740] [2021-02-22 01:56:27,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:56:27,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 01:56:27,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855651364] [2021-02-22 01:56:27,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 01:56:27,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:56:27,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 01:56:27,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:56:27,091 INFO L87 Difference]: Start difference. First operand 104 states and 111 transitions. Second operand 10 states. [2021-02-22 01:56:27,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:56:27,729 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2021-02-22 01:56:27,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-22 01:56:27,730 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2021-02-22 01:56:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:56:27,733 INFO L225 Difference]: With dead ends: 128 [2021-02-22 01:56:27,733 INFO L226 Difference]: Without dead ends: 117 [2021-02-22 01:56:27,734 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 [2021-02-22 01:56:27,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-02-22 01:56:27,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2021-02-22 01:56:27,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-02-22 01:56:27,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 118 transitions. [2021-02-22 01:56:27,761 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 118 transitions. Word has length 58 [2021-02-22 01:56:27,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:56:27,762 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 118 transitions. [2021-02-22 01:56:27,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 01:56:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 118 transitions. [2021-02-22 01:56:27,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-02-22 01:56:27,765 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:56:27,765 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] [2021-02-22 01:56:27,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:56:27,766 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:56:27,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:56:27,766 INFO L82 PathProgramCache]: Analyzing trace with hash 2070130097, now seen corresponding path program 1 times [2021-02-22 01:56:27,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:56:27,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385669325] [2021-02-22 01:56:27,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:56:27,770 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:56:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:56:27,805 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:56:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:56:27,858 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:56:27,922 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 01:56:27,923 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:56:27,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:56:27,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:56:27 BoogieIcfgContainer [2021-02-22 01:56:27,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:56:27,959 INFO L168 Benchmark]: Toolchain (without parser) took 3924.87 ms. Allocated memory was 157.3 MB in the beginning and 189.8 MB in the end (delta: 32.5 MB). Free memory was 133.1 MB in the beginning and 85.3 MB in the end (delta: 47.8 MB). Peak memory consumption was 81.7 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:27,960 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:56:27,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.50 ms. Allocated memory is still 157.3 MB. Free memory was 132.0 MB in the beginning and 120.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:27,962 INFO L168 Benchmark]: Boogie Preprocessor took 48.90 ms. Allocated memory is still 157.3 MB. Free memory was 120.9 MB in the beginning and 119.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:27,966 INFO L168 Benchmark]: RCFGBuilder took 835.12 ms. Allocated memory is still 157.3 MB. Free memory was 119.3 MB in the beginning and 91.6 MB in the end (delta: 27.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:27,970 INFO L168 Benchmark]: TraceAbstraction took 2722.78 ms. Allocated memory was 157.3 MB in the beginning and 189.8 MB in the end (delta: 32.5 MB). Free memory was 91.1 MB in the beginning and 85.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:56:27,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 296.50 ms. Allocated memory is still 157.3 MB. Free memory was 132.0 MB in the beginning and 120.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 48.90 ms. Allocated memory is still 157.3 MB. Free memory was 120.9 MB in the beginning and 119.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 835.12 ms. Allocated memory is still 157.3 MB. Free memory was 119.3 MB in the beginning and 91.6 MB in the end (delta: 27.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2722.78 ms. Allocated memory was 157.3 MB in the beginning and 189.8 MB in the end (delta: 32.5 MB). Free memory was 91.1 MB in the beginning and 85.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 39.8 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: 2.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.3s, 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, 0.6s 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: 0.0s 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...