./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/alt_test.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 f0dc10cff0d4b9b6abcb3203593853156d0ff603 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 00:56:17,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 00:56:17,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 00:56:17,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 00:56:17,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 00:56:17,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 00:56:17,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 00:56:17,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 00:56:17,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 00:56:17,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 00:56:17,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 00:56:17,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 00:56:17,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 00:56:17,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 00:56:17,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 00:56:17,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 00:56:17,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 00:56:17,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 00:56:17,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 00:56:17,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 00:56:17,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 00:56:17,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 00:56:17,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 00:56:17,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 00:56:17,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 00:56:17,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 00:56:17,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 00:56:17,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 00:56:17,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 00:56:17,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 00:56:17,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 00:56:17,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 00:56:17,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 00:56:17,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 00:56:17,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 00:56:17,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 00:56:17,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 00:56:17,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 00:56:17,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 00:56:17,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 00:56:17,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 00:56:17,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 00:56:18,018 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 00:56:18,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 00:56:18,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 00:56:18,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 00:56:18,020 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 00:56:18,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 00:56:18,021 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 00:56:18,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 00:56:18,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 00:56:18,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 00:56:18,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 00:56:18,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 00:56:18,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 00:56:18,022 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 00:56:18,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 00:56:18,022 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 00:56:18,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 00:56:18,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 00:56:18,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 00:56:18,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 00:56:18,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 00:56:18,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 00:56:18,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 00:56:18,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 00:56:18,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 00:56:18,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 00:56:18,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 00:56:18,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 00:56:18,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0dc10cff0d4b9b6abcb3203593853156d0ff603 [2021-07-05 00:56:18,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 00:56:18,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 00:56:18,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 00:56:18,313 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 00:56:18,313 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 00:56:18,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/alt_test.i [2021-07-05 00:56:18,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79a2a991/cb458ecbd1cb4de38478afef68214314/FLAG4b07bc258 [2021-07-05 00:56:18,776 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 00:56:18,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/alt_test.i [2021-07-05 00:56:18,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79a2a991/cb458ecbd1cb4de38478afef68214314/FLAG4b07bc258 [2021-07-05 00:56:19,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79a2a991/cb458ecbd1cb4de38478afef68214314 [2021-07-05 00:56:19,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 00:56:19,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 00:56:19,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 00:56:19,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 00:56:19,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 00:56:19,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14bfdffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19, skipping insertion in model container [2021-07-05 00:56:19,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 00:56:19,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 00:56:19,396 WARN L224 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/alt_test.i[22285,22298] [2021-07-05 00:56:19,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 00:56:19,407 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 00:56:19,436 WARN L224 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/alt_test.i[22285,22298] [2021-07-05 00:56:19,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 00:56:19,467 INFO L208 MainTranslator]: Completed translation [2021-07-05 00:56:19,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19 WrapperNode [2021-07-05 00:56:19,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 00:56:19,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 00:56:19,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 00:56:19,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 00:56:19,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 00:56:19,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 00:56:19,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 00:56:19,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 00:56:19,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 00:56:19,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 00:56:19,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 00:56:19,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 00:56:19,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (1/1) ... [2021-07-05 00:56:19,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 00:56:19,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 00:56:19,554 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) [2021-07-05 00:56:19,556 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 [2021-07-05 00:56:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-05 00:56:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 00:56:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 00:56:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 00:56:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 00:56:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 00:56:19,879 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 00:56:19,887 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-07-05 00:56:19,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 12:56:19 BoogieIcfgContainer [2021-07-05 00:56:19,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 00:56:19,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 00:56:19,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 00:56:19,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 00:56:19,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 12:56:19" (1/3) ... [2021-07-05 00:56:19,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a9747d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 12:56:19, skipping insertion in model container [2021-07-05 00:56:19,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:56:19" (2/3) ... [2021-07-05 00:56:19,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a9747d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 12:56:19, skipping insertion in model container [2021-07-05 00:56:19,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 12:56:19" (3/3) ... [2021-07-05 00:56:19,893 INFO L111 eAbstractionObserver]: Analyzing ICFG alt_test.i [2021-07-05 00:56:19,898 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 00:56:19,898 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 00:56:19,932 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 00:56:19,937 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 00:56:19,937 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 00:56:19,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 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) [2021-07-05 00:56:19,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-05 00:56:19,949 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 00:56:19,949 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 00:56:19,950 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 00:56:19,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 00:56:19,954 INFO L82 PathProgramCache]: Analyzing trace with hash 119352108, now seen corresponding path program 1 times [2021-07-05 00:56:19,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 00:56:19,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090123346] [2021-07-05 00:56:19,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 00:56:19,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 00:56:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 00:56:20,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 00:56:20,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 00:56:20,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 00:56:20,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 00:56:20,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 00:56:20,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090123346] [2021-07-05 00:56:20,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090123346] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 00:56:20,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 00:56:20,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 00:56:20,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179167278] [2021-07-05 00:56:20,135 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 00:56:20,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 00:56:20,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 00:56:20,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 00:56:20,147 INFO L87 Difference]: Start difference. First operand has 20 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-07-05 00:56:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 00:56:20,180 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2021-07-05 00:56:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 00:56:20,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-07-05 00:56:20,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 00:56:20,189 INFO L225 Difference]: With dead ends: 39 [2021-07-05 00:56:20,190 INFO L226 Difference]: Without dead ends: 9 [2021-07-05 00:56:20,192 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 00:56:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-07-05 00:56:20,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-07-05 00:56:20,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2021-07-05 00:56:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-07-05 00:56:20,210 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-07-05 00:56:20,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 00:56:20,210 INFO L442 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-07-05 00:56:20,210 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-07-05 00:56:20,211 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-07-05 00:56:20,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-05 00:56:20,211 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 00:56:20,211 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 00:56:20,212 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 00:56:20,212 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 00:56:20,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 00:56:20,215 INFO L82 PathProgramCache]: Analyzing trace with hash 176610410, now seen corresponding path program 1 times [2021-07-05 00:56:20,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 00:56:20,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6784316] [2021-07-05 00:56:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 00:56:20,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 00:56:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 00:56:20,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 00:56:20,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 00:56:20,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 00:56:20,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 00:56:20,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 00:56:20,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6784316] [2021-07-05 00:56:20,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6784316] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 00:56:20,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 00:56:20,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 00:56:20,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406726822] [2021-07-05 00:56:20,267 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 00:56:20,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 00:56:20,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 00:56:20,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 00:56:20,269 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-07-05 00:56:20,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 00:56:20,270 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-07-05 00:56:20,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 00:56:20,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-07-05 00:56:20,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 00:56:20,271 INFO L225 Difference]: With dead ends: 9 [2021-07-05 00:56:20,272 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 00:56:20,272 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 00:56:20,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 00:56:20,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 00:56:20,274 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) [2021-07-05 00:56:20,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 00:56:20,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-07-05 00:56:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 00:56:20,274 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 00:56:20,274 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-07-05 00:56:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 00:56:20,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 00:56:20,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 00:56:20,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 00:56:20,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 00:56:20,289 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 516) no Hoare annotation was computed. [2021-07-05 00:56:20,291 INFO L762 garLoopResultBuilder]: For program point L535(line 535) no Hoare annotation was computed. [2021-07-05 00:56:20,291 INFO L762 garLoopResultBuilder]: For program point L535-1(line 535) no Hoare annotation was computed. [2021-07-05 00:56:20,291 INFO L762 garLoopResultBuilder]: For program point L535-3(line 535) no Hoare annotation was computed. [2021-07-05 00:56:20,291 INFO L762 garLoopResultBuilder]: For program point L535-4(line 535) no Hoare annotation was computed. [2021-07-05 00:56:20,292 INFO L762 garLoopResultBuilder]: For program point L535-5(line 535) no Hoare annotation was computed. [2021-07-05 00:56:20,292 INFO L762 garLoopResultBuilder]: For program point L535-7(line 535) no Hoare annotation was computed. [2021-07-05 00:56:20,292 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 00:56:20,293 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 00:56:20,293 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 00:56:20,298 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 516) no Hoare annotation was computed. [2021-07-05 00:56:20,298 INFO L758 garLoopResultBuilder]: At program point L532(lines 528 533) the Hoare annotation is: (= ~globalState~0 1) [2021-07-05 00:56:20,298 INFO L762 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-07-05 00:56:20,299 INFO L762 garLoopResultBuilder]: For program point L516-1(line 516) no Hoare annotation was computed. [2021-07-05 00:56:20,299 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 00:56:20,299 INFO L762 garLoopResultBuilder]: For program point L534(lines 534 538) no Hoare annotation was computed. [2021-07-05 00:56:20,299 INFO L762 garLoopResultBuilder]: For program point L534-1(lines 534 538) no Hoare annotation was computed. [2021-07-05 00:56:20,300 INFO L762 garLoopResultBuilder]: For program point L530(lines 530 531) no Hoare annotation was computed. [2021-07-05 00:56:20,300 INFO L762 garLoopResultBuilder]: For program point L530-2(lines 530 531) no Hoare annotation was computed. [2021-07-05 00:56:20,300 INFO L765 garLoopResultBuilder]: At program point L526(lines 521 527) the Hoare annotation is: true [2021-07-05 00:56:20,300 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 00:56:20,300 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 00:56:20,305 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/2) [2021-07-05 00:56:20,314 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 00:56:20,315 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 00:56:20,315 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 00:56:20,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 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) [2021-07-05 00:56:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 00:56:20,317 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 00:56:20,317 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 00:56:20,317 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 00:56:20,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 00:56:20,318 INFO L82 PathProgramCache]: Analyzing trace with hash -262109109, now seen corresponding path program 1 times [2021-07-05 00:56:20,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 00:56:20,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431787671] [2021-07-05 00:56:20,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 00:56:20,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 00:56:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 00:56:20,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 00:56:20,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 00:56:20,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 00:56:20,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 00:56:20,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 00:56:20,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:56:20,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 00:56:20,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 00:56:20,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 00:56:20,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431787671] [2021-07-05 00:56:20,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431787671] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 00:56:20,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 00:56:20,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-05 00:56:20,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405704486] [2021-07-05 00:56:20,358 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 00:56:20,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 00:56:20,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 00:56:20,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-05 00:56:20,359 INFO L87 Difference]: Start difference. First operand has 20 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 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) Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2021-07-05 00:56:20,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 00:56:20,394 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2021-07-05 00:56:20,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 00:56:20,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 [2021-07-05 00:56:20,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 00:56:20,395 INFO L225 Difference]: With dead ends: 37 [2021-07-05 00:56:20,395 INFO L226 Difference]: Without dead ends: 13 [2021-07-05 00:56:20,396 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-05 00:56:20,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-07-05 00:56:20,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-07-05 00:56:20,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 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) [2021-07-05 00:56:20,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-07-05 00:56:20,397 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2021-07-05 00:56:20,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 00:56:20,398 INFO L442 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-07-05 00:56:20,398 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2021-07-05 00:56:20,398 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-07-05 00:56:20,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-05 00:56:20,398 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 00:56:20,398 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 00:56:20,399 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-05 00:56:20,399 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 00:56:20,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 00:56:20,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1912419270, now seen corresponding path program 1 times [2021-07-05 00:56:20,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 00:56:20,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30975110] [2021-07-05 00:56:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 00:56:20,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 00:56:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 00:56:20,420 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 00:56:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 00:56:20,428 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 00:56:20,440 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-05 00:56:20,441 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-05 00:56:20,441 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-05 00:56:20,441 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 00:56:20,441 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (2/2) [2021-07-05 00:56:20,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 12:56:20 BoogieIcfgContainer [2021-07-05 00:56:20,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 00:56:20,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 00:56:20,464 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 00:56:20,464 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 00:56:20,464 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 12:56:19" (3/4) ... [2021-07-05 00:56:20,465 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-05 00:56:20,489 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 00:56:20,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 00:56:20,490 INFO L168 Benchmark]: Toolchain (without parser) took 1351.45 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 40.5 MB in the beginning and 64.1 MB in the end (delta: -23.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 00:56:20,490 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 00:56:20,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.90 ms. Allocated memory is still 67.1 MB. Free memory was 40.3 MB in the beginning and 38.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-07-05 00:56:20,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.02 ms. Allocated memory is still 67.1 MB. Free memory was 38.2 MB in the beginning and 36.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 00:56:20,491 INFO L168 Benchmark]: Boogie Preprocessor took 11.84 ms. Allocated memory is still 67.1 MB. Free memory was 36.5 MB in the beginning and 35.5 MB in the end (delta: 998.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 00:56:20,491 INFO L168 Benchmark]: RCFGBuilder took 384.64 ms. Allocated memory is still 67.1 MB. Free memory was 35.3 MB in the beginning and 37.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-07-05 00:56:20,492 INFO L168 Benchmark]: TraceAbstraction took 574.25 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 36.5 MB in the beginning and 66.8 MB in the end (delta: -30.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 00:56:20,492 INFO L168 Benchmark]: Witness Printer took 25.74 ms. Allocated memory is still 90.2 MB. Free memory was 66.8 MB in the beginning and 64.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 00:56:20,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.90 ms. Allocated memory is still 67.1 MB. Free memory was 40.3 MB in the beginning and 38.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 22.02 ms. Allocated memory is still 67.1 MB. Free memory was 38.2 MB in the beginning and 36.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 11.84 ms. Allocated memory is still 67.1 MB. Free memory was 36.5 MB in the beginning and 35.5 MB in the end (delta: 998.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 384.64 ms. Allocated memory is still 67.1 MB. Free memory was 35.3 MB in the beginning and 37.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 574.25 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 36.5 MB in the beginning and 66.8 MB in the end (delta: -30.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 25.74 ms. Allocated memory is still 90.2 MB. Free memory was 66.8 MB in the beginning and 64.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 516]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - CounterExampleResult [Line: 516]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L518] int globalState = 0; VAL [globalState=0] [L529] void *retVal = malloc(size); VAL [globalState=0] [L530] COND TRUE retVal != ((void *)0) [L531] globalState=1 VAL [globalState=1] [L532] return retVal; VAL [globalState=1] [L523] int *a = (int*) l_malloc(sizeof(int)); [L535] COND TRUE ptr!=((void *)0) VAL [globalState=1] [L535] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=1] [L536] globalState = 0 [L535] COND TRUE ptr!=((void *)0) VAL [globalState=0] [L535] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=0] [L516] reach_error() VAL [globalState=0] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 373.3ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 6.1ms, AutomataDifference: 59.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 10.7ms, InitialAbstractionConstructionTime: 6.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 24 SDtfs, 2 SDslu, 15 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 4.5ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 9.5ms SsaConstructionTime, 57.2ms SatisfiabilityAnalysisTime, 85.3ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 127.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.9ms, AutomataDifference: 37.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 56 SDslu, 11 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.3ms SsaConstructionTime, 21.6ms SatisfiabilityAnalysisTime, 30.6ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - InvariantResult [Line: 528]: Loop Invariant Derived loop invariant: globalState == 1 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be incorrect! [2021-07-05 00:56:20,517 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...