/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:04:41,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:04:41,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:04:41,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:04:41,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:04:41,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:04:41,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:04:41,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:04:41,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:04:42,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:04:42,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:04:42,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:04:42,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:04:42,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:04:42,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:04:42,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:04:42,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:04:42,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:04:42,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:04:42,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:04:42,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:04:42,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:04:42,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:04:42,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:04:42,052 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:04:42,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:04:42,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:04:42,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:04:42,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:04:42,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:04:42,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:04:42,053 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:04:42,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:04:42,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:04:42,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:04:42,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:04:42,054 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:04:42,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:04:42,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:04:42,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:04:42,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:04:42,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:04:42,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:04:42,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:04:42,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:04:42,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:04:42,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:04:42,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:04:42,457 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:04:42,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2021-02-23 23:04:42,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47a3e3b33/ae1f137dde8348d1816f2d85b9867d41/FLAG5adb43247 [2021-02-23 23:04:43,206 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:04:43,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2021-02-23 23:04:43,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47a3e3b33/ae1f137dde8348d1816f2d85b9867d41/FLAG5adb43247 [2021-02-23 23:04:43,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47a3e3b33/ae1f137dde8348d1816f2d85b9867d41 [2021-02-23 23:04:43,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:04:43,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:04:43,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:04:43,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:04:43,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:04:43,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:43" (1/1) ... [2021-02-23 23:04:43,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260f3d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43, skipping insertion in model container [2021-02-23 23:04:43,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:43" (1/1) ... [2021-02-23 23:04:43,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:04:43,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:04:43,703 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] [2021-02-23 23:04:43,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:04:43,750 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:04:43,762 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] [2021-02-23 23:04:43,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:04:43,796 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:04:43,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43 WrapperNode [2021-02-23 23:04:43,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:04:43,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:04:43,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:04:43,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:04:43,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43" (1/1) ... [2021-02-23 23:04:43,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43" (1/1) ... [2021-02-23 23:04:43,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43" (1/1) ... [2021-02-23 23:04:43,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43" (1/1) ... [2021-02-23 23:04:43,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43" (1/1) ... [2021-02-23 23:04:43,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43" (1/1) ... [2021-02-23 23:04:43,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43" (1/1) ... [2021-02-23 23:04:43,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:04:43,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:04:43,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:04:43,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:04:43,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43" (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 [2021-02-23 23:04:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:04:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:04:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:04:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-23 23:04:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-02-23 23:04:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-02-23 23:04:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2021-02-23 23:04:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2021-02-23 23:04:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2021-02-23 23:04:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2021-02-23 23:04:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:04:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-02-23 23:04:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:04:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:04:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:04:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:04:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:04:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-23 23:04:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 23:04:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-02-23 23:04:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 23:04:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-02-23 23:04:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-02-23 23:04:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2021-02-23 23:04:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2021-02-23 23:04:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2021-02-23 23:04:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2021-02-23 23:04:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:04:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 23:04:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 23:04:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:04:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:04:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:04:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:04:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:04:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:04:44,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:04:44,560 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 23:04:44,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:44 BoogieIcfgContainer [2021-02-23 23:04:44,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:04:44,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:04:44,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:04:44,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:04:44,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:04:43" (1/3) ... [2021-02-23 23:04:44,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2206ebdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:44, skipping insertion in model container [2021-02-23 23:04:44,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:43" (2/3) ... [2021-02-23 23:04:44,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2206ebdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:44, skipping insertion in model container [2021-02-23 23:04:44,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:44" (3/3) ... [2021-02-23 23:04:44,572 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2021-02-23 23:04:44,580 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:04:44,585 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:04:44,605 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:04:44,632 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:04:44,632 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:04:44,632 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:04:44,633 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:04:44,633 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:04:44,633 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:04:44,633 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:04:44,633 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:04:44,654 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2021-02-23 23:04:44,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-02-23 23:04:44,665 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:04:44,666 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] [2021-02-23 23:04:44,667 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:04:44,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:04:44,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1636215635, now seen corresponding path program 1 times [2021-02-23 23:04:44,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:04:44,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969555848] [2021-02-23 23:04:44,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:04:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:45,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:45,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:45,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:04:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:45,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:45,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 23:04:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:45,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:45,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:04:45,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:04:45,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:45,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:04:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:45,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:45,349 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-02-23 23:04:45,351 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size 9 [2021-02-23 23:04:45,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:04:45,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:04:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:45,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:45,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:45,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:04:45,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969555848] [2021-02-23 23:04:45,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:04:45,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 23:04:45,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087147464] [2021-02-23 23:04:45,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:04:45,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:04:45,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:04:45,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:04:45,473 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 10 states. [2021-02-23 23:04:46,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:04:46,235 INFO L93 Difference]: Finished difference Result 130 states and 142 transitions. [2021-02-23 23:04:46,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-23 23:04:46,237 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2021-02-23 23:04:46,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:04:46,250 INFO L225 Difference]: With dead ends: 130 [2021-02-23 23:04:46,250 INFO L226 Difference]: Without dead ends: 108 [2021-02-23 23:04:46,254 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 [2021-02-23 23:04:46,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-02-23 23:04:46,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2021-02-23 23:04:46,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-23 23:04:46,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 111 transitions. [2021-02-23 23:04:46,325 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 111 transitions. Word has length 43 [2021-02-23 23:04:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:04:46,327 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 111 transitions. [2021-02-23 23:04:46,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:04:46,327 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 111 transitions. [2021-02-23 23:04:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-23 23:04:46,330 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:04:46,331 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] [2021-02-23 23:04:46,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:04:46,331 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:04:46,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:04:46,332 INFO L82 PathProgramCache]: Analyzing trace with hash 234532648, now seen corresponding path program 1 times [2021-02-23 23:04:46,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:04:46,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201100280] [2021-02-23 23:04:46,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:04:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:46,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:46,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:46,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:04:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:46,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:46,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 23:04:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:46,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:46,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:04:46,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:04:46,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:46,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:04:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:46,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:04:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:46,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:46,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 23:04:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:46,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:46,537 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-02-23 23:04:46,538 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size 9 [2021-02-23 23:04:46,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:04:46,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:04:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:46,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:46,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-23 23:04:46,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201100280] [2021-02-23 23:04:46,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:04:46,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 23:04:46,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339057927] [2021-02-23 23:04:46,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:04:46,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:04:46,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:04:46,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:04:46,583 INFO L87 Difference]: Start difference. First operand 104 states and 111 transitions. Second operand 10 states. [2021-02-23 23:04:47,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:04:47,230 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2021-02-23 23:04:47,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 23:04:47,230 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2021-02-23 23:04:47,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:04:47,233 INFO L225 Difference]: With dead ends: 128 [2021-02-23 23:04:47,233 INFO L226 Difference]: Without dead ends: 117 [2021-02-23 23:04:47,235 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 [2021-02-23 23:04:47,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-02-23 23:04:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2021-02-23 23:04:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-02-23 23:04:47,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 118 transitions. [2021-02-23 23:04:47,262 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 118 transitions. Word has length 58 [2021-02-23 23:04:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:04:47,263 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 118 transitions. [2021-02-23 23:04:47,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:04:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 118 transitions. [2021-02-23 23:04:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-02-23 23:04:47,266 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:04:47,281 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] [2021-02-23 23:04:47,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:04:47,282 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:04:47,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:04:47,283 INFO L82 PathProgramCache]: Analyzing trace with hash 2070130097, now seen corresponding path program 1 times [2021-02-23 23:04:47,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:04:47,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770921162] [2021-02-23 23:04:47,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:04:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 23:04:47,324 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 23:04:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 23:04:47,386 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 23:04:47,452 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 23:04:47,453 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 23:04:47,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:04:47,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 11:04:47 BoogieIcfgContainer [2021-02-23 23:04:47,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 23:04:47,551 INFO L168 Benchmark]: Toolchain (without parser) took 4023.90 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 129.2 MB in the beginning and 154.1 MB in the end (delta: -25.0 MB). Peak memory consumption was 11.3 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:47,551 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 153.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 23:04:47,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.05 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 117.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:47,553 INFO L168 Benchmark]: Boogie Preprocessor took 46.75 ms. Allocated memory is still 153.1 MB. Free memory was 117.3 MB in the beginning and 115.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:47,554 INFO L168 Benchmark]: RCFGBuilder took 716.91 ms. Allocated memory is still 153.1 MB. Free memory was 115.3 MB in the beginning and 123.2 MB in the end (delta: -8.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:47,555 INFO L168 Benchmark]: TraceAbstraction took 2984.89 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 122.7 MB in the beginning and 154.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:47,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 153.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 259.05 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 117.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.75 ms. Allocated memory is still 153.1 MB. Free memory was 117.3 MB in the beginning and 115.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 716.91 ms. Allocated memory is still 153.1 MB. Free memory was 115.3 MB in the beginning and 123.2 MB in the end (delta: -8.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2984.89 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 122.7 MB in the beginning and 154.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 4.7 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; VAL [\old(freed_tmp_slot)=66, \old(tmp_slot)=59, \old(tmp_slot)=51, \old(used_tmp_slot)=61, freed_tmp_slot=66, tmp_slot={0:0}, used_tmp_slot=61] [L43] int used_tmp_slot = 0; VAL [\old(freed_tmp_slot)=66, \old(tmp_slot)=59, \old(tmp_slot)=51, \old(used_tmp_slot)=61, freed_tmp_slot=66, tmp_slot={0:0}, used_tmp_slot=0] [L44] int freed_tmp_slot = 1; VAL [\old(freed_tmp_slot)=66, \old(tmp_slot)=59, \old(tmp_slot)=51, \old(used_tmp_slot)=61, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L138] CALL ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L75] struct hotplug_slot *hp_slot_ptr; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L77] struct bus_info *bus_info_ptr1; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L78] int rc; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L80] CALL, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L49] EXPR, FCALL calloc(1, size) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, calloc(1, size)={-1:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L49] return calloc(1, size); VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={-1:0}, calloc(1, size)={-1:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L80] RET, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, kzalloc(sizeof(*hp_slot_ptr), 1)={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L80] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={-1:0}, kzalloc(sizeof(*hp_slot_ptr), 1)={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L81] COND FALSE !(!hp_slot_ptr) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L85] hp_slot_ptr->b = 5 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L87] CALL, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L49] EXPR, FCALL calloc(1, size) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, calloc(1, size)={-2:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L49] return calloc(1, size); VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={-2:0}, calloc(1, size)={-2:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L87] RET, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={-1:0}, kzalloc(sizeof(*tmp_slot), 1)={-2:0}, tmp_slot={0:0}, used_tmp_slot=0] [L87] tmp_slot = kzalloc(sizeof(*tmp_slot), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={-1:0}, kzalloc(sizeof(*tmp_slot), 1)={-2:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L89] COND FALSE !(!tmp_slot) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={-1:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L94] used_tmp_slot = 0 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={-1:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L95] freed_tmp_slot = 0 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={-1:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L97] tmp_slot->a = 2 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={-1:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L98] tmp_slot->b = 3 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={-1:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L100] CALL, EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L58] COND TRUE __VERIFIER_nondet_int() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, __VERIFIER_nondet_int()=1, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L59] return 0; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={0:0}, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L100] RET, EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={-1:0}, ibmphp_find_same_bus_num()={0:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L100] bus_info_ptr1 = ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, ibmphp_find_same_bus_num()={0:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L101] COND TRUE !bus_info_ptr1 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L102] rc = -3 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L129] EXPR hp_slot_ptr->private VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, hp_slot_ptr->private={0:65}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L129] CALL kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={0:65}, tmp_slot={-2:0}, used_tmp_slot=0] [L52] COND FALSE !(p!=0 && p==tmp_slot) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={0:65}, p={0:65}, tmp_slot={-2:0}, used_tmp_slot=0] [L129] RET kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, hp_slot_ptr->private={0:65}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L134] return rc; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result=-3, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L138] RET ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, ebda_rsrc_controller()=-3, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L139] COND TRUE !used_tmp_slot VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L140] (freed_tmp_slot) ? (0) : __blast_assert () VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L140] CALL __blast_assert () VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L9] reach_error() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] - 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, 0.7s 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 17619 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, 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...