./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 f4b24e32 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-?-f4b24e3 [2022-07-13 15:00:04,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 15:00:04,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 15:00:04,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 15:00:04,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 15:00:04,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 15:00:04,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 15:00:04,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 15:00:04,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 15:00:04,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 15:00:04,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 15:00:04,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 15:00:04,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 15:00:04,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 15:00:04,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 15:00:04,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 15:00:04,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 15:00:04,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 15:00:04,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 15:00:04,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 15:00:04,518 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 15:00:04,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 15:00:04,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 15:00:04,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 15:00:04,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 15:00:04,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 15:00:04,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 15:00:04,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 15:00:04,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 15:00:04,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 15:00:04,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 15:00:04,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 15:00:04,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 15:00:04,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 15:00:04,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 15:00:04,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 15:00:04,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 15:00:04,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 15:00:04,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 15:00:04,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 15:00:04,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 15:00:04,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 15:00:04,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 15:00:04,557 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 15:00:04,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 15:00:04,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 15:00:04,558 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 15:00:04,559 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 15:00:04,559 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 15:00:04,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 15:00:04,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 15:00:04,560 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 15:00:04,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 15:00:04,560 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 15:00:04,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 15:00:04,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 15:00:04,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 15:00:04,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 15:00:04,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 15:00:04,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 15:00:04,561 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 15:00:04,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 15:00:04,562 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 15:00:04,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 15:00:04,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 15:00:04,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 15:00:04,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 15:00:04,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:00:04,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 15:00:04,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 15:00:04,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 15:00:04,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 15:00:04,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 15:00:04,570 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 15:00:04,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 15:00:04,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 15:00:04,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87a050a9ba88ec48bac6e38316d21dd54013b685d199047e34008aa0aba79e8c [2022-07-13 15:00:04,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 15:00:04,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 15:00:04,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 15:00:04,764 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 15:00:04,779 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 15:00:04,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i [2022-07-13 15:00:04,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b02a04a/5d9a5171923c495082aa4a61008164b4/FLAG2a9421100 [2022-07-13 15:00:05,138 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 15:00:05,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i [2022-07-13 15:00:05,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b02a04a/5d9a5171923c495082aa4a61008164b4/FLAG2a9421100 [2022-07-13 15:00:05,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b02a04a/5d9a5171923c495082aa4a61008164b4 [2022-07-13 15:00:05,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 15:00:05,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 15:00:05,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 15:00:05,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 15:00:05,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 15:00:05,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@172d0a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05, skipping insertion in model container [2022-07-13 15:00:05,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 15:00:05,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 15:00:05,713 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] [2022-07-13 15:00:05,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:00:05,746 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 15:00:05,753 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] [2022-07-13 15:00:05,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:00:05,768 INFO L208 MainTranslator]: Completed translation [2022-07-13 15:00:05,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05 WrapperNode [2022-07-13 15:00:05,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 15:00:05,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 15:00:05,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 15:00:05,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 15:00:05,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,797 INFO L137 Inliner]: procedures = 24, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 99 [2022-07-13 15:00:05,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 15:00:05,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 15:00:05,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 15:00:05,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 15:00:05,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 15:00:05,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 15:00:05,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 15:00:05,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 15:00:05,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (1/1) ... [2022-07-13 15:00:05,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:00:05,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:00:05,844 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) [2022-07-13 15:00:05,859 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 [2022-07-13 15:00:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 15:00:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 15:00:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 15:00:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 15:00:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 15:00:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 15:00:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-13 15:00:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-13 15:00:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 15:00:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 15:00:05,949 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 15:00:05,951 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 15:00:06,130 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 15:00:06,135 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 15:00:06,135 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 15:00:06,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:00:06 BoogieIcfgContainer [2022-07-13 15:00:06,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 15:00:06,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 15:00:06,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 15:00:06,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 15:00:06,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 03:00:05" (1/3) ... [2022-07-13 15:00:06,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb1fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:00:06, skipping insertion in model container [2022-07-13 15:00:06,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:00:05" (2/3) ... [2022-07-13 15:00:06,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb1fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:00:06, skipping insertion in model container [2022-07-13 15:00:06,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:00:06" (3/3) ... [2022-07-13 15:00:06,142 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast.i [2022-07-13 15:00:06,151 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 15:00:06,152 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 15:00:06,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 15:00:06,185 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2ab7f389, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3ea84cd5 [2022-07-13 15:00:06,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 15:00:06,188 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) [2022-07-13 15:00:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 15:00:06,193 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:00:06,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:00:06,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:00:06,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:00:06,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1648817827, now seen corresponding path program 1 times [2022-07-13 15:00:06,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:00:06,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502606611] [2022-07-13 15:00:06,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:00:06,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:00:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 15:00:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:06,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:00:06,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:00:06,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502606611] [2022-07-13 15:00:06,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502606611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:00:06,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:00:06,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 15:00:06,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720980189] [2022-07-13 15:00:06,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:00:06,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 15:00:06,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:00:06,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 15:00:06,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 15:00:06,501 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) [2022-07-13 15:00:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:00:06,584 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2022-07-13 15:00:06,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 15:00:06,586 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 [2022-07-13 15:00:06,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:00:06,590 INFO L225 Difference]: With dead ends: 42 [2022-07-13 15:00:06,591 INFO L226 Difference]: Without dead ends: 29 [2022-07-13 15:00:06,593 INFO L412 NwaCegarLoop]: 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 [2022-07-13 15:00:06,595 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 29 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:00:06,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 154 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:00:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-13 15:00:06,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-07-13 15:00:06,623 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) [2022-07-13 15:00:06,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-07-13 15:00:06,625 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 14 [2022-07-13 15:00:06,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:00:06,626 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-13 15:00:06,627 INFO L496 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) [2022-07-13 15:00:06,627 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-07-13 15:00:06,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-13 15:00:06,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:00:06,630 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:00:06,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 15:00:06,632 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:00:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:00:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash -181602474, now seen corresponding path program 1 times [2022-07-13 15:00:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:00:06,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826555068] [2022-07-13 15:00:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:00:06,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:00:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 15:00:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:06,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 15:00:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 15:00:06,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:00:06,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826555068] [2022-07-13 15:00:06,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826555068] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:00:06,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:00:06,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 15:00:06,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010937797] [2022-07-13 15:00:06,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:00:06,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 15:00:06,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:00:06,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 15:00:06,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 15:00:06,718 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) [2022-07-13 15:00:06,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:00:06,811 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-07-13 15:00:06,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 15:00:06,812 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 [2022-07-13 15:00:06,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:00:06,813 INFO L225 Difference]: With dead ends: 39 [2022-07-13 15:00:06,813 INFO L226 Difference]: Without dead ends: 33 [2022-07-13 15:00:06,814 INFO L412 NwaCegarLoop]: 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 [2022-07-13 15:00:06,816 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 25 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:00:06,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 134 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:00:06,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-13 15:00:06,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-07-13 15:00:06,830 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) [2022-07-13 15:00:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-07-13 15:00:06,831 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 21 [2022-07-13 15:00:06,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:00:06,832 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-07-13 15:00:06,833 INFO L496 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) [2022-07-13 15:00:06,833 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-07-13 15:00:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-13 15:00:06,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:00:06,838 INFO L195 NwaCegarLoop]: 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] [2022-07-13 15:00:06,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 15:00:06,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:00:06,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:00:06,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1758754954, now seen corresponding path program 1 times [2022-07-13 15:00:06,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:00:06,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100102759] [2022-07-13 15:00:06,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:00:06,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:00:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:06,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 15:00:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:06,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 15:00:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:06,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 15:00:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:06,995 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-13 15:00:06,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:00:06,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100102759] [2022-07-13 15:00:06,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100102759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:00:06,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:00:06,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 15:00:06,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546988618] [2022-07-13 15:00:06,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:00:06,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 15:00:06,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:00:06,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 15:00:06,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 15:00:06,998 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) [2022-07-13 15:00:07,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:00:07,043 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2022-07-13 15:00:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 15:00:07,044 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 [2022-07-13 15:00:07,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:00:07,045 INFO L225 Difference]: With dead ends: 42 [2022-07-13 15:00:07,045 INFO L226 Difference]: Without dead ends: 33 [2022-07-13 15:00:07,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-13 15:00:07,046 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 18 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:00:07,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 166 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:00:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-13 15:00:07,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-07-13 15:00:07,050 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) [2022-07-13 15:00:07,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-07-13 15:00:07,051 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 32 [2022-07-13 15:00:07,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:00:07,052 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-07-13 15:00:07,052 INFO L496 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) [2022-07-13 15:00:07,052 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-07-13 15:00:07,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-13 15:00:07,054 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:00:07,054 INFO L195 NwaCegarLoop]: 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] [2022-07-13 15:00:07,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 15:00:07,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:00:07,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:00:07,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1338195985, now seen corresponding path program 1 times [2022-07-13 15:00:07,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:00:07,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100551405] [2022-07-13 15:00:07,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:00:07,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:00:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:07,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 15:00:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:07,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 15:00:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:07,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 15:00:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:00:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 15:00:07,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:00:07,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100551405] [2022-07-13 15:00:07,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100551405] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:00:07,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:00:07,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 15:00:07,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042953929] [2022-07-13 15:00:07,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:00:07,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 15:00:07,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:00:07,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 15:00:07,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 15:00:07,150 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) [2022-07-13 15:00:07,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:00:07,171 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-07-13 15:00:07,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 15:00:07,172 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 [2022-07-13 15:00:07,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:00:07,172 INFO L225 Difference]: With dead ends: 33 [2022-07-13 15:00:07,172 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 15:00:07,175 INFO L412 NwaCegarLoop]: 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 [2022-07-13 15:00:07,177 INFO L413 NwaCegarLoop]: 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 [2022-07-13 15:00:07,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:00:07,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 15:00:07,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 15:00:07,179 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) [2022-07-13 15:00:07,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 15:00:07,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-07-13 15:00:07,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:00:07,180 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 15:00:07,181 INFO L496 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) [2022-07-13 15:00:07,181 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 15:00:07,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 15:00:07,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 15:00:07,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 15:00:07,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 15:00:07,232 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 15:00:07,233 INFO L899 garLoopResultBuilder]: For program point kzallocEXIT(line 48) no Hoare annotation was computed. [2022-07-13 15:00:07,233 INFO L895 garLoopResultBuilder]: At program point kzallocENTRY(line 48) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2022-07-13 15:00:07,233 INFO L899 garLoopResultBuilder]: For program point kzallocFINAL(line 48) no Hoare annotation was computed. [2022-07-13 15:00:07,233 INFO L895 garLoopResultBuilder]: At program point L64(lines 62 65) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2022-07-13 15:00:07,233 INFO L895 garLoopResultBuilder]: At program point L122(lines 72 133) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2022-07-13 15:00:07,234 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) [2022-07-13 15:00:07,234 INFO L899 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2022-07-13 15:00:07,234 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 139) no Hoare annotation was computed. [2022-07-13 15:00:07,234 INFO L895 garLoopResultBuilder]: At program point L69(lines 67 70) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2022-07-13 15:00:07,234 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 15:00:07,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 15:00:07,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 15:00:07,235 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0))) [2022-07-13 15:00:07,237 INFO L899 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2022-07-13 15:00:07,237 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2022-07-13 15:00:07,238 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 56 58) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0))) [2022-07-13 15:00:07,238 INFO L902 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2022-07-13 15:00:07,238 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2022-07-13 15:00:07,238 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-07-13 15:00:07,238 INFO L895 garLoopResultBuilder]: At program point L132(lines 72 133) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2022-07-13 15:00:07,238 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 107) no Hoare annotation was computed. [2022-07-13 15:00:07,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 15:00:07,240 INFO L895 garLoopResultBuilder]: At program point L128(lines 72 133) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2022-07-13 15:00:07,240 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 90) no Hoare annotation was computed. [2022-07-13 15:00:07,240 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2022-07-13 15:00:07,240 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2022-07-13 15:00:07,240 INFO L899 garLoopResultBuilder]: For program point L137(lines 137 138) no Hoare annotation was computed. [2022-07-13 15:00:07,241 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2022-07-13 15:00:07,241 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2022-07-13 15:00:07,241 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2022-07-13 15:00:07,241 INFO L899 garLoopResultBuilder]: For program point L138(line 138) no Hoare annotation was computed. [2022-07-13 15:00:07,241 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 9) no Hoare annotation was computed. [2022-07-13 15:00:07,245 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-13 15:00:07,246 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 15:00:07,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 03:00:07 BoogieIcfgContainer [2022-07-13 15:00:07,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 15:00:07,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 15:00:07,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 15:00:07,263 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 15:00:07,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:00:06" (3/4) ... [2022-07-13 15:00:07,265 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 15:00:07,270 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2022-07-13 15:00:07,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-07-13 15:00:07,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-13 15:00:07,276 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 15:00:07,276 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 15:00:07,293 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2022-07-13 15:00:07,293 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2022-07-13 15:00:07,293 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0) [2022-07-13 15:00:07,294 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2022-07-13 15:00:07,294 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2022-07-13 15:00:07,295 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2022-07-13 15:00:07,310 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 15:00:07,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 15:00:07,311 INFO L158 Benchmark]: Toolchain (without parser) took 1746.49ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 46.4MB in the beginning and 67.4MB in the end (delta: -20.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-07-13 15:00:07,312 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 86.0MB. Free memory was 62.9MB in the beginning and 62.8MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 15:00:07,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.09ms. Allocated memory is still 86.0MB. Free memory was 65.2MB in the beginning and 60.4MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 15:00:07,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.70ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 58.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 15:00:07,312 INFO L158 Benchmark]: Boogie Preprocessor took 15.24ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 57.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 15:00:07,313 INFO L158 Benchmark]: RCFGBuilder took 322.55ms. Allocated memory is still 86.0MB. Free memory was 57.0MB in the beginning and 44.0MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 15:00:07,313 INFO L158 Benchmark]: TraceAbstraction took 1124.33ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 43.5MB in the beginning and 70.7MB in the end (delta: -27.1MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2022-07-13 15:00:07,313 INFO L158 Benchmark]: Witness Printer took 48.45ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 67.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 15:00:07,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 86.0MB. Free memory was 62.9MB in the beginning and 62.8MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.09ms. Allocated memory is still 86.0MB. Free memory was 65.2MB in the beginning and 60.4MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.70ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 58.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.24ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 57.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 322.55ms. Allocated memory is still 86.0MB. Free memory was 57.0MB in the beginning and 44.0MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1124.33ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 43.5MB in the beginning and 70.7MB in the end (delta: -27.1MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 48.45ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 67.4MB in the end (delta: 3.3MB). 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 519 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 402 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 117 mSDtfsCounter, 135 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: 0.0s 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, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 284 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: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 RESULT: Ultimate proved your program to be correct! [2022-07-13 15:00:07,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE