./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/nla-digbench-scaling/dijkstra-u_unwindbound1.c -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 980b89e86ce07236ec737c292cc01a6432932a51 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 12:09:28,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 12:09:28,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 12:09:28,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 12:09:28,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 12:09:28,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 12:09:28,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 12:09:28,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 12:09:28,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 12:09:28,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 12:09:28,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 12:09:28,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 12:09:28,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 12:09:28,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 12:09:28,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 12:09:28,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 12:09:28,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 12:09:28,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 12:09:28,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 12:09:28,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 12:09:28,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 12:09:28,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 12:09:28,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 12:09:28,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 12:09:28,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 12:09:28,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 12:09:28,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 12:09:28,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 12:09:28,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 12:09:28,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 12:09:28,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 12:09:28,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 12:09:28,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 12:09:28,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 12:09:28,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 12:09:28,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 12:09:28,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 12:09:28,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 12:09:28,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 12:09:28,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 12:09:28,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 12:09:28,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 12:09:28,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 12:09:28,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 12:09:28,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 12:09:28,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 12:09:28,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 12:09:28,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 12:09:28,844 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 12:09:28,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 12:09:28,844 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 12:09:28,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 12:09:28,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 12:09:28,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 12:09:28,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 12:09:28,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 12:09:28,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 12:09:28,846 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 12:09:28,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 12:09:28,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 12:09:28,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 12:09:28,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 12:09:28,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 12:09:28,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 12:09:28,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 12:09:28,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 12:09:28,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 12:09:28,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 12:09:28,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 12:09:28,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 12:09:28,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 12:09:28,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 12:09:28,855 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 980b89e86ce07236ec737c292cc01a6432932a51 [2021-08-29 12:09:29,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 12:09:29,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 12:09:29,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 12:09:29,098 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 12:09:29,099 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 12:09:29,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c [2021-08-29 12:09:29,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62549047/3afe5f9e5cf648e68012ff570511c42c/FLAGa7a4c7d33 [2021-08-29 12:09:29,549 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 12:09:29,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c [2021-08-29 12:09:29,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62549047/3afe5f9e5cf648e68012ff570511c42c/FLAGa7a4c7d33 [2021-08-29 12:09:29,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62549047/3afe5f9e5cf648e68012ff570511c42c [2021-08-29 12:09:29,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 12:09:29,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 12:09:29,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 12:09:29,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 12:09:29,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 12:09:29,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592f9683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29, skipping insertion in model container [2021-08-29 12:09:29,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 12:09:29,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 12:09:29,722 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c[533,546] [2021-08-29 12:09:29,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 12:09:29,748 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 12:09:29,755 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c[533,546] [2021-08-29 12:09:29,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 12:09:29,804 INFO L208 MainTranslator]: Completed translation [2021-08-29 12:09:29,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29 WrapperNode [2021-08-29 12:09:29,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 12:09:29,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 12:09:29,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 12:09:29,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 12:09:29,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 12:09:29,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 12:09:29,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 12:09:29,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 12:09:29,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 12:09:29,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 12:09:29,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 12:09:29,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 12:09:29,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (1/1) ... [2021-08-29 12:09:29,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 12:09:29,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:09:29,926 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) [2021-08-29 12:09:29,950 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 [2021-08-29 12:09:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 12:09:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 12:09:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 12:09:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 12:09:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2021-08-29 12:09:30,123 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 12:09:30,124 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-08-29 12:09:30,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 12:09:30 BoogieIcfgContainer [2021-08-29 12:09:30,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 12:09:30,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 12:09:30,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 12:09:30,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 12:09:30,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 12:09:29" (1/3) ... [2021-08-29 12:09:30,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642d814d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 12:09:30, skipping insertion in model container [2021-08-29 12:09:30,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:29" (2/3) ... [2021-08-29 12:09:30,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642d814d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 12:09:30, skipping insertion in model container [2021-08-29 12:09:30,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 12:09:30" (3/3) ... [2021-08-29 12:09:30,132 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound1.c [2021-08-29 12:09:30,135 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 12:09:30,135 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-08-29 12:09:30,177 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 12:09:30,184 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-29 12:09:30,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-08-29 12:09:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 40 states have (on average 1.65) internal successors, (66), 49 states have internal predecessors, (66), 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) [2021-08-29 12:09:30,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-29 12:09:30,203 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:30,203 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:30,204 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:30,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:30,208 INFO L82 PathProgramCache]: Analyzing trace with hash -578123657, now seen corresponding path program 1 times [2021-08-29 12:09:30,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:30,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430476968] [2021-08-29 12:09:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:30,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:30,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:30,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430476968] [2021-08-29 12:09:30,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430476968] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:30,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:30,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 12:09:30,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707132536] [2021-08-29 12:09:30,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 12:09:30,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:30,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 12:09:30,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 12:09:30,385 INFO L87 Difference]: Start difference. First operand has 50 states, 40 states have (on average 1.65) internal successors, (66), 49 states have internal predecessors, (66), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-08-29 12:09:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:30,499 INFO L93 Difference]: Finished difference Result 97 states and 128 transitions. [2021-08-29 12:09:30,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 12:09:30,501 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) Word has length 9 [2021-08-29 12:09:30,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:30,508 INFO L225 Difference]: With dead ends: 97 [2021-08-29 12:09:30,508 INFO L226 Difference]: Without dead ends: 46 [2021-08-29 12:09:30,510 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 12:09:30,513 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.91ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:30,518 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 54 Unknown, 0 Unchecked, 0.41ms Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 98.91ms Time] [2021-08-29 12:09:30,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-08-29 12:09:30,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-08-29 12:09:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 45 states have internal predecessors, (50), 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) [2021-08-29 12:09:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-08-29 12:09:30,550 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 9 [2021-08-29 12:09:30,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:30,550 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-08-29 12:09:30,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-08-29 12:09:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-08-29 12:09:30,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 12:09:30,552 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:30,552 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:30,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 12:09:30,553 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:30,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:30,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1987056657, now seen corresponding path program 1 times [2021-08-29 12:09:30,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:30,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209655725] [2021-08-29 12:09:30,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:30,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:30,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:30,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:30,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209655725] [2021-08-29 12:09:30,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209655725] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:30,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:30,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 12:09:30,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514240469] [2021-08-29 12:09:30,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 12:09:30,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:30,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 12:09:30,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 12:09:30,645 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-08-29 12:09:32,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:09:32,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:32,801 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-08-29 12:09:32,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 12:09:32,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2021-08-29 12:09:32,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:32,802 INFO L225 Difference]: With dead ends: 87 [2021-08-29 12:09:32,802 INFO L226 Difference]: Without dead ends: 48 [2021-08-29 12:09:32,802 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.35ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 12:09:32,803 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2118.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2143.89ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:32,803 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 144 Unknown, 0 Unchecked, 1.25ms Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 1 Unknown, 0 Unchecked, 2143.89ms Time] [2021-08-29 12:09:32,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-08-29 12:09:32,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-08-29 12:09:32,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 47 states have internal predecessors, (52), 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) [2021-08-29 12:09:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-08-29 12:09:32,810 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 10 [2021-08-29 12:09:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:32,810 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-08-29 12:09:32,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-08-29 12:09:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-08-29 12:09:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 12:09:32,811 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:32,811 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:32,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 12:09:32,812 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:32,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1420419469, now seen corresponding path program 1 times [2021-08-29 12:09:32,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:32,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976902510] [2021-08-29 12:09:32,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:32,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:32,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:32,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976902510] [2021-08-29 12:09:32,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976902510] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:32,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:32,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 12:09:32,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127190841] [2021-08-29 12:09:32,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 12:09:32,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:32,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 12:09:32,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-29 12:09:32,887 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-29 12:09:32,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:32,991 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2021-08-29 12:09:32,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 12:09:32,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 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) Word has length 11 [2021-08-29 12:09:32,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:32,992 INFO L225 Difference]: With dead ends: 62 [2021-08-29 12:09:32,992 INFO L226 Difference]: Without dead ends: 23 [2021-08-29 12:09:32,992 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 34.72ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-29 12:09:32,993 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.80ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.92ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:32,993 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 90 Unknown, 0 Unchecked, 0.80ms Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 81.92ms Time] [2021-08-29 12:09:32,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-08-29 12:09:32,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-08-29 12:09:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 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) [2021-08-29 12:09:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-08-29 12:09:32,996 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2021-08-29 12:09:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:32,996 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-08-29 12:09:32,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-29 12:09:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-08-29 12:09:32,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 12:09:32,996 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:32,996 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:32,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 12:09:32,997 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:32,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:32,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1083313625, now seen corresponding path program 1 times [2021-08-29 12:09:32,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:32,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915326307] [2021-08-29 12:09:32,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:32,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:33,013 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-29 12:09:33,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201782191] [2021-08-29 12:09:33,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:33,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:09:33,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:09:33,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 12:09:33,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 12:09:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:33,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 12:09:33,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 12:09:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:33,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 12:09:33,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:33,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915326307] [2021-08-29 12:09:33,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-29 12:09:33,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201782191] [2021-08-29 12:09:33,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201782191] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:33,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:33,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 12:09:33,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798093308] [2021-08-29 12:09:33,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 12:09:33,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:33,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 12:09:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 12:09:33,179 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-08-29 12:09:33,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:33,222 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-08-29 12:09:33,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 12:09:33,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) Word has length 12 [2021-08-29 12:09:33,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:33,223 INFO L225 Difference]: With dead ends: 23 [2021-08-29 12:09:33,224 INFO L226 Difference]: Without dead ends: 17 [2021-08-29 12:09:33,224 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.03ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 12:09:33,230 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.58ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.84ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:33,231 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.58ms Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 27.84ms Time] [2021-08-29 12:09:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-08-29 12:09:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-08-29 12:09:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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) [2021-08-29 12:09:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-08-29 12:09:33,237 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2021-08-29 12:09:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:33,237 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-08-29 12:09:33,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-08-29 12:09:33,237 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-08-29 12:09:33,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 12:09:33,237 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:33,238 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:33,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 12:09:33,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:09:33,444 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:33,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:33,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1682149110, now seen corresponding path program 1 times [2021-08-29 12:09:33,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:33,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666881122] [2021-08-29 12:09:33,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:33,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:33,452 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-29 12:09:33,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538439693] [2021-08-29 12:09:33,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:33,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:09:33,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:09:33,453 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 12:09:33,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-29 12:09:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:33,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 12:09:33,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 12:09:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:33,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 12:09:33,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:33,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666881122] [2021-08-29 12:09:33,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-29 12:09:33,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538439693] [2021-08-29 12:09:33,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538439693] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:33,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:33,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 12:09:33,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805819889] [2021-08-29 12:09:33,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 12:09:33,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:33,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 12:09:33,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 12:09:33,605 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-08-29 12:09:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:33,638 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-08-29 12:09:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 12:09:33,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 14 [2021-08-29 12:09:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:33,638 INFO L225 Difference]: With dead ends: 17 [2021-08-29 12:09:33,638 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 12:09:33,639 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 12:09:33,639 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.82ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:33,639 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 30 Unknown, 0 Unchecked, 0.18ms Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 24.82ms Time] [2021-08-29 12:09:33,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 12:09:33,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 12:09:33,640 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) [2021-08-29 12:09:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 12:09:33,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-08-29 12:09:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:33,640 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 12:09:33,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-08-29 12:09:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 12:09:33,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 12:09:33,643 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2021-08-29 12:09:33,643 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2021-08-29 12:09:33,643 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2021-08-29 12:09:33,643 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2021-08-29 12:09:33,643 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2021-08-29 12:09:33,643 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2021-08-29 12:09:33,644 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2021-08-29 12:09:33,644 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2021-08-29 12:09:33,644 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2021-08-29 12:09:33,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-29 12:09:33,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:09:33,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 12:09:33,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:09:33,898 INFO L861 garLoopResultBuilder]: At program point L60(lines 20 61) the Hoare annotation is: true [2021-08-29 12:09:33,899 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:09:33,899 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-08-29 12:09:33,899 INFO L858 garLoopResultBuilder]: For program point L52-2(lines 20 61) no Hoare annotation was computed. [2021-08-29 12:09:33,899 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:09:33,899 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 12:09:33,899 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 12:09:33,899 INFO L858 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:09:33,899 INFO L854 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: false [2021-08-29 12:09:33,900 INFO L858 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:09:33,900 INFO L854 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: false [2021-08-29 12:09:33,900 INFO L858 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:09:33,900 INFO L854 garLoopResultBuilder]: At program point L12-8(lines 11 17) the Hoare annotation is: false [2021-08-29 12:09:33,900 INFO L858 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:09:33,900 INFO L854 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: false [2021-08-29 12:09:33,900 INFO L858 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:09:33,900 INFO L854 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: false [2021-08-29 12:09:33,901 INFO L858 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:09:33,901 INFO L854 garLoopResultBuilder]: At program point L12-17(lines 46 47) the Hoare annotation is: false [2021-08-29 12:09:33,901 INFO L858 garLoopResultBuilder]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:09:33,901 INFO L854 garLoopResultBuilder]: At program point L12-20(lines 11 17) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 0) (<= 1 ~counter~0) (= ULTIMATE.start_main_~h~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) [2021-08-29 12:09:33,901 INFO L858 garLoopResultBuilder]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:09:33,901 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:09:33,901 INFO L854 garLoopResultBuilder]: At program point L12-23(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~p~0 0) (<= 1 ~counter~0) (= ULTIMATE.start_main_~h~0 0)) [2021-08-29 12:09:33,901 INFO L858 garLoopResultBuilder]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:09:33,902 INFO L861 garLoopResultBuilder]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2021-08-29 12:09:33,902 INFO L858 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:09:33,902 INFO L858 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:09:33,902 INFO L858 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:09:33,902 INFO L858 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:09:33,902 INFO L858 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:09:33,902 INFO L858 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:09:33,902 INFO L858 garLoopResultBuilder]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:09:33,903 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 56) no Hoare annotation was computed. [2021-08-29 12:09:33,903 INFO L858 garLoopResultBuilder]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:09:33,903 INFO L858 garLoopResultBuilder]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:09:33,903 INFO L858 garLoopResultBuilder]: For program point L38-2(lines 38 56) no Hoare annotation was computed. [2021-08-29 12:09:33,903 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:09:33,903 INFO L858 garLoopResultBuilder]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2021-08-29 12:09:33,903 INFO L854 garLoopResultBuilder]: At program point L30-3(lines 30 35) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~p~0 0)) (.cse1 (= ULTIMATE.start_main_~h~0 0)) (.cse2 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0))) (or (and .cse0 (= ~counter~0 0) .cse1 .cse2) (and .cse0 (<= 1 ~counter~0) .cse1 .cse2))) [2021-08-29 12:09:33,903 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-08-29 12:09:33,904 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:09:33,904 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 12:09:33,904 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:09:33,904 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:09:33,904 INFO L858 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-08-29 12:09:33,904 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 12:09:33,904 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:09:33,904 INFO L858 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-08-29 12:09:33,905 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:09:33,907 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 12:09:33,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 12:09:33 BoogieIcfgContainer [2021-08-29 12:09:33,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 12:09:33,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 12:09:33,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 12:09:33,917 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 12:09:33,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 12:09:30" (3/4) ... [2021-08-29 12:09:33,919 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 12:09:33,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-08-29 12:09:33,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 12:09:33,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 12:09:33,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 12:09:33,948 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 12:09:33,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 12:09:33,948 INFO L158 Benchmark]: Toolchain (without parser) took 4374.24ms. Allocated memory was 52.4MB in the beginning and 83.9MB in the end (delta: 31.5MB). Free memory was 29.5MB in the beginning and 43.5MB in the end (delta: -14.1MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2021-08-29 12:09:33,949 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 12:09:33,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.44ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 53.1MB in the end (delta: -23.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-08-29 12:09:33,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.32ms. Allocated memory is still 69.2MB. Free memory was 53.1MB in the beginning and 51.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 12:09:33,949 INFO L158 Benchmark]: Boogie Preprocessor took 33.04ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 49.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 12:09:33,949 INFO L158 Benchmark]: RCFGBuilder took 241.67ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 39.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 12:09:33,950 INFO L158 Benchmark]: TraceAbstraction took 3790.36ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 39.0MB in the beginning and 47.2MB in the end (delta: -8.2MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-08-29 12:09:33,950 INFO L158 Benchmark]: Witness Printer took 30.74ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 43.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 12:09:33,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.44ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 53.1MB in the end (delta: -23.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.32ms. Allocated memory is still 69.2MB. Free memory was 53.1MB in the beginning and 51.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.04ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 49.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 241.67ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 39.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3790.36ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 39.0MB in the beginning and 47.2MB in the end (delta: -8.2MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Witness Printer took 30.74ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 43.5MB in the end (delta: 3.7MB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: 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 1 procedures, 50 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 3731.71ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 11.11ms, AutomataDifference: 2515.02ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 40.86ms, InitialAbstractionConstructionTime: 8.28ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 2377.38ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2320.68ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 159 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 349 IncrementalHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 349 mSolverCounterSat, 3.22ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 70.58ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 33.62ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 61 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 11.07ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 24.61ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 34.37ms SsaConstructionTime, 95.78ms SatisfiabilityAnalysisTime, 389.23ms InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 9 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 9 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (p == 0 && 1 <= counter) && h == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((1 <= cond && p == 0) && 1 <= counter) && h == 0) && n == r - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((p == 0 && counter == 0) && h == 0) && n == r) || (((p == 0 && 1 <= counter) && h == 0) && n == r) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-08-29 12:09:33,965 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...