./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87a050a9ba88ec48bac6e38316d21dd54013b685d199047e34008aa0aba79e8c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:51:45,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:51:45,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:51:45,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:51:45,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:51:45,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:51:45,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:51:45,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:51:45,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:51:45,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:51:45,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:51:45,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:51:45,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:51:45,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:51:45,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:51:45,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:51:45,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:51:45,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:51:45,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:51:45,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:51:45,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:51:45,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:51:45,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:51:45,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:51:45,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:51:45,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:51:45,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:51:45,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:51:45,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:51:45,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:51:45,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:51:45,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:51:45,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:51:45,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:51:45,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:51:45,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:51:45,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:51:45,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:51:45,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:51:45,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:51:45,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:51:45,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 23:51:45,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:51:45,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:51:45,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:51:45,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:51:45,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:51:45,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:51:45,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:51:45,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:51:45,634 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:51:45,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:51:45,635 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:51:45,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 23:51:45,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:51:45,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:51:45,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:51:45,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:51:45,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:51:45,636 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:51:45,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:51:45,636 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:51:45,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:51:45,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:51:45,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:51:45,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:51:45,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:51:45,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:51:45,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:51:45,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:51:45,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 23:51:45,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 23:51:45,638 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:51:45,638 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:51:45,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:51:45,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:51:45,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87a050a9ba88ec48bac6e38316d21dd54013b685d199047e34008aa0aba79e8c [2021-12-15 23:51:45,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:51:45,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:51:45,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:51:45,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:51:45,888 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:51:45,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i [2021-12-15 23:51:45,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16c8e4fa/a9e7b097f7b24bdf86db1e1659c286ac/FLAG5675ba536 [2021-12-15 23:51:46,322 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:51:46,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i [2021-12-15 23:51:46,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16c8e4fa/a9e7b097f7b24bdf86db1e1659c286ac/FLAG5675ba536 [2021-12-15 23:51:46,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d16c8e4fa/a9e7b097f7b24bdf86db1e1659c286ac [2021-12-15 23:51:46,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:51:46,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:51:46,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:51:46,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:51:46,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:51:46,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199fe70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46, skipping insertion in model container [2021-12-15 23:51:46,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:51:46,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:51:46,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i[299,312] [2021-12-15 23:51:46,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:51:46,569 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:51:46,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i[299,312] [2021-12-15 23:51:46,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:51:46,599 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:51:46,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46 WrapperNode [2021-12-15 23:51:46,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:51:46,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:51:46,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:51:46,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:51:46,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,629 INFO L137 Inliner]: procedures = 24, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 99 [2021-12-15 23:51:46,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:51:46,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:51:46,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:51:46,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:51:46,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:51:46,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:51:46,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:51:46,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:51:46,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (1/1) ... [2021-12-15 23:51:46,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:51:46,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:51:46,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 23:51:46,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 23:51:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 23:51:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:51:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 23:51:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 23:51:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 23:51:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 23:51:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-15 23:51:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-15 23:51:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:51:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:51:46,844 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:51:46,845 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:51:47,011 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:51:47,016 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:51:47,017 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 23:51:47,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:51:47 BoogieIcfgContainer [2021-12-15 23:51:47,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:51:47,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:51:47,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:51:47,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:51:47,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:51:46" (1/3) ... [2021-12-15 23:51:47,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70feb53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:51:47, skipping insertion in model container [2021-12-15 23:51:47,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:51:46" (2/3) ... [2021-12-15 23:51:47,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70feb53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:51:47, skipping insertion in model container [2021-12-15 23:51:47,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:51:47" (3/3) ... [2021-12-15 23:51:47,025 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast.i [2021-12-15 23:51:47,030 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:51:47,030 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:51:47,065 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:51:47,070 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 23:51:47,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:51:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 23:51:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-15 23:51:47,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:51:47,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:51:47,101 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:51:47,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:51:47,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1648817827, now seen corresponding path program 1 times [2021-12-15 23:51:47,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:51:47,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015594222] [2021-12-15 23:51:47,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:51:47,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:51:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:47,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-15 23:51:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:51:47,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:51:47,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015594222] [2021-12-15 23:51:47,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015594222] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:51:47,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:51:47,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 23:51:47,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834035509] [2021-12-15 23:51:47,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:51:47,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 23:51:47,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:51:47,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 23:51:47,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-15 23:51:47,473 INFO L87 Difference]: Start difference. First operand has 33 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-15 23:51:47,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:51:47,595 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2021-12-15 23:51:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 23:51:47,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-12-15 23:51:47,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:51:47,603 INFO L225 Difference]: With dead ends: 42 [2021-12-15 23:51:47,603 INFO L226 Difference]: Without dead ends: 29 [2021-12-15 23:51:47,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:51:47,621 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 29 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 23:51:47,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 157 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 23:51:47,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-15 23:51:47,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-12-15 23:51:47,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 23:51:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2021-12-15 23:51:47,676 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 14 [2021-12-15 23:51:47,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:51:47,677 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-12-15 23:51:47,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-15 23:51:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2021-12-15 23:51:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 23:51:47,678 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:51:47,679 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:51:47,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 23:51:47,679 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:51:47,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:51:47,691 INFO L85 PathProgramCache]: Analyzing trace with hash -181602474, now seen corresponding path program 1 times [2021-12-15 23:51:47,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:51:47,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059689160] [2021-12-15 23:51:47,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:51:47,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:51:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:47,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-15 23:51:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:47,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-15 23:51:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 23:51:47,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:51:47,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059689160] [2021-12-15 23:51:47,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059689160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:51:47,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:51:47,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 23:51:47,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371737288] [2021-12-15 23:51:47,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:51:47,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 23:51:47,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:51:47,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 23:51:47,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-15 23:51:47,802 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-15 23:51:47,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:51:47,879 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2021-12-15 23:51:47,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-15 23:51:47,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-12-15 23:51:47,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:51:47,883 INFO L225 Difference]: With dead ends: 39 [2021-12-15 23:51:47,883 INFO L226 Difference]: Without dead ends: 33 [2021-12-15 23:51:47,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-12-15 23:51:47,885 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 25 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:51:47,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 137 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:51:47,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-12-15 23:51:47,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-12-15 23:51:47,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 23:51:47,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2021-12-15 23:51:47,893 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 21 [2021-12-15 23:51:47,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:51:47,894 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-12-15 23:51:47,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-15 23:51:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2021-12-15 23:51:47,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 23:51:47,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:51:47,896 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:51:47,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 23:51:47,896 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:51:47,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:51:47,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1758754954, now seen corresponding path program 1 times [2021-12-15 23:51:47,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:51:47,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901247293] [2021-12-15 23:51:47,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:51:47,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:51:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:47,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-15 23:51:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:47,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-15 23:51:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:47,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-15 23:51:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-15 23:51:48,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:51:48,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901247293] [2021-12-15 23:51:48,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901247293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:51:48,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:51:48,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 23:51:48,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246877270] [2021-12-15 23:51:48,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:51:48,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 23:51:48,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:51:48,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 23:51:48,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:51:48,060 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-15 23:51:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:51:48,151 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2021-12-15 23:51:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 23:51:48,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2021-12-15 23:51:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:51:48,153 INFO L225 Difference]: With dead ends: 42 [2021-12-15 23:51:48,154 INFO L226 Difference]: Without dead ends: 33 [2021-12-15 23:51:48,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-15 23:51:48,157 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 18 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:51:48,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 169 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:51:48,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-12-15 23:51:48,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-12-15 23:51:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 23:51:48,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2021-12-15 23:51:48,171 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 32 [2021-12-15 23:51:48,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:51:48,172 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2021-12-15 23:51:48,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-15 23:51:48,173 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2021-12-15 23:51:48,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 23:51:48,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:51:48,175 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:51:48,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 23:51:48,175 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:51:48,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:51:48,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1338195985, now seen corresponding path program 1 times [2021-12-15 23:51:48,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:51:48,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610712875] [2021-12-15 23:51:48,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:51:48,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:51:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:48,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-15 23:51:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:48,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-15 23:51:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:48,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-15 23:51:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:51:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-15 23:51:48,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:51:48,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610712875] [2021-12-15 23:51:48,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610712875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:51:48,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:51:48,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 23:51:48,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958723619] [2021-12-15 23:51:48,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:51:48,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 23:51:48,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:51:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 23:51:48,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 23:51:48,313 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-15 23:51:48,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:51:48,334 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-12-15 23:51:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 23:51:48,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2021-12-15 23:51:48,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:51:48,336 INFO L225 Difference]: With dead ends: 33 [2021-12-15 23:51:48,336 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 23:51:48,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 23:51:48,338 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:51:48,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:51:48,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 23:51:48,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 23:51:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:51:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 23:51:48,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-12-15 23:51:48,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:51:48,343 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 23:51:48,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-15 23:51:48,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 23:51:48,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 23:51:48,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 23:51:48,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 23:51:48,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 23:51:48,418 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 23:51:48,419 INFO L858 garLoopResultBuilder]: For program point kzallocEXIT(line 48) no Hoare annotation was computed. [2021-12-15 23:51:48,420 INFO L854 garLoopResultBuilder]: At program point kzallocENTRY(line 48) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#valid| |old(#valid)|) (= |#length| |old(#length)|)) [2021-12-15 23:51:48,421 INFO L858 garLoopResultBuilder]: For program point kzallocFINAL(line 48) no Hoare annotation was computed. [2021-12-15 23:51:48,421 INFO L854 garLoopResultBuilder]: At program point L64(lines 62 65) the Hoare annotation is: (and (not (= 0 |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (= 1 ~used_tmp_slot~0) (not (= 0 |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (not (= 0 ~tmp_slot~0.base))) [2021-12-15 23:51:48,428 INFO L854 garLoopResultBuilder]: At program point L122(lines 72 133) the Hoare annotation is: (and (not (= 0 |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (= 1 ~used_tmp_slot~0) (not (= 0 |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (not (= 0 ~tmp_slot~0.base))) [2021-12-15 23:51:48,429 INFO L854 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (not (= 0 |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) [2021-12-15 23:51:48,429 INFO L858 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2021-12-15 23:51:48,429 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 139) no Hoare annotation was computed. [2021-12-15 23:51:48,429 INFO L854 garLoopResultBuilder]: At program point L69(lines 67 70) the Hoare annotation is: (and (not (= 0 |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (= 1 ~used_tmp_slot~0) (not (= 0 |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (not (= 0 ~tmp_slot~0.base))) [2021-12-15 23:51:48,430 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 23:51:48,430 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 23:51:48,430 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 23:51:48,431 INFO L854 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (and (not (= 0 |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (not (= 0 ~tmp_slot~0.base))) [2021-12-15 23:51:48,431 INFO L858 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2021-12-15 23:51:48,432 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-12-15 23:51:48,432 INFO L854 garLoopResultBuilder]: At program point L57-2(lines 56 58) the Hoare annotation is: (and (not (= 0 |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (not (= 0 |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (not (= 0 ~tmp_slot~0.base))) [2021-12-15 23:51:48,432 INFO L861 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2021-12-15 23:51:48,432 INFO L858 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2021-12-15 23:51:48,433 INFO L858 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-12-15 23:51:48,433 INFO L854 garLoopResultBuilder]: At program point L132(lines 72 133) the Hoare annotation is: (and (not (= 0 |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (= 1 ~used_tmp_slot~0) (not (= 0 |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (not (= 0 ~tmp_slot~0.base))) [2021-12-15 23:51:48,433 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 107) no Hoare annotation was computed. [2021-12-15 23:51:48,433 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 23:51:48,433 INFO L854 garLoopResultBuilder]: At program point L128(lines 72 133) the Hoare annotation is: (and (not (= 0 |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (= 1 ~used_tmp_slot~0) (not (= 0 |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (not (= 0 ~tmp_slot~0.base))) [2021-12-15 23:51:48,433 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 90) no Hoare annotation was computed. [2021-12-15 23:51:48,434 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2021-12-15 23:51:48,434 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2021-12-15 23:51:48,434 INFO L858 garLoopResultBuilder]: For program point L137(lines 137 138) no Hoare annotation was computed. [2021-12-15 23:51:48,434 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2021-12-15 23:51:48,434 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2021-12-15 23:51:48,434 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-12-15 23:51:48,435 INFO L858 garLoopResultBuilder]: For program point L138(line 138) no Hoare annotation was computed. [2021-12-15 23:51:48,435 INFO L858 garLoopResultBuilder]: For program point L6(lines 6 9) no Hoare annotation was computed. [2021-12-15 23:51:48,438 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-15 23:51:48,439 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:51:48,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:51:48 BoogieIcfgContainer [2021-12-15 23:51:48,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:51:48,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:51:48,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:51:48,459 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:51:48,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:51:47" (3/4) ... [2021-12-15 23:51:48,463 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 23:51:48,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2021-12-15 23:51:48,473 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-12-15 23:51:48,474 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-15 23:51:48,474 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 23:51:48,474 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 23:51:48,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) [2021-12-15 23:51:48,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) [2021-12-15 23:51:48,491 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == hp_slot_ptr) && !(0 == \result)) && !(0 == tmp_slot) [2021-12-15 23:51:48,491 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) [2021-12-15 23:51:48,491 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) [2021-12-15 23:51:48,492 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) [2021-12-15 23:51:48,504 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 23:51:48,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:51:48,507 INFO L158 Benchmark]: Toolchain (without parser) took 2159.28ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 52.3MB in the beginning and 56.1MB in the end (delta: -3.8MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2021-12-15 23:51:48,507 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:51:48,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.20ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 52.1MB in the beginning and 81.4MB in the end (delta: -29.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 23:51:48,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.69ms. Allocated memory is still 107.0MB. Free memory was 81.4MB in the beginning and 79.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:51:48,508 INFO L158 Benchmark]: Boogie Preprocessor took 25.25ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 78.2MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 23:51:48,508 INFO L158 Benchmark]: RCFGBuilder took 361.90ms. Allocated memory is still 107.0MB. Free memory was 78.2MB in the beginning and 65.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 23:51:48,508 INFO L158 Benchmark]: TraceAbstraction took 1438.25ms. Allocated memory is still 107.0MB. Free memory was 65.2MB in the beginning and 59.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-12-15 23:51:48,508 INFO L158 Benchmark]: Witness Printer took 47.51ms. Allocated memory is still 107.0MB. Free memory was 59.5MB in the beginning and 56.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 23:51:48,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.20ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 52.1MB in the beginning and 81.4MB in the end (delta: -29.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.69ms. Allocated memory is still 107.0MB. Free memory was 81.4MB in the beginning and 79.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.25ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 78.2MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 361.90ms. Allocated memory is still 107.0MB. Free memory was 78.2MB in the beginning and 65.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1438.25ms. Allocated memory is still 107.0MB. Free memory was 65.2MB in the beginning and 59.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 47.51ms. Allocated memory is still 107.0MB. Free memory was 59.5MB in the beginning and 56.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 528 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 411 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 117 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 117 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 28/28 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (!(0 == hp_slot_ptr) && !(0 == \result)) && !(0 == tmp_slot) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(0 == hp_slot_ptr) && 1 == used_tmp_slot) && !(0 == \result)) && !(0 == tmp_slot) RESULT: Ultimate proved your program to be correct! [2021-12-15 23:51:48,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE