./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5548fe8f778e7c2708ef61e0a888b0a58ecb52f0 .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:56:12,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:56:12,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:56:12,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:56:12,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:56:12,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:56:12,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:56:12,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:56:12,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:56:12,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:56:12,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:56:12,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:56:12,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:56:12,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:56:12,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:56:12,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:56:12,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:56:12,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:56:12,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:56:12,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:56:12,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:56:12,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:56:12,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:56:12,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:56:12,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:56:12,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:56:12,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:56:12,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:56:12,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:56:12,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:56:12,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:56:12,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:56:12,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:56:12,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:56:12,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:56:12,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:56:12,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:56:12,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:56:12,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:56:12,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:56:12,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:56:12,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:56:12,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:56:12,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:56:12,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:56:12,256 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:56:12,257 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:56:12,257 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:56:12,257 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:56:12,258 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:56:12,258 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:56:12,258 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:56:12,266 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:56:12,266 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:56:12,267 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:56:12,267 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:56:12,267 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:56:12,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:56:12,268 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:56:12,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:56:12,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:56:12,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:56:12,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:56:12,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:56:12,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:56:12,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:56:12,270 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:56:12,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:56:12,271 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:56:12,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:56:12,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:56:12,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:56:12,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:56:12,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:56:12,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:56:12,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:56:12,275 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:56:12,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:56:12,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:56:12,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:56:12,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:56:12,276 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5548fe8f778e7c2708ef61e0a888b0a58ecb52f0 [2021-10-16 02:56:12,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:56:12,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:56:12,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:56:12,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:56:12,618 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:56:12,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/eca-rers2012/Problem10_label10.c [2021-10-16 02:56:12,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/data/e4f60072a/8d775b55a2e247b393136689eaa9ba10/FLAGb86b8635a [2021-10-16 02:56:13,339 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:56:13,349 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/sv-benchmarks/c/eca-rers2012/Problem10_label10.c [2021-10-16 02:56:13,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/data/e4f60072a/8d775b55a2e247b393136689eaa9ba10/FLAGb86b8635a [2021-10-16 02:56:13,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/data/e4f60072a/8d775b55a2e247b393136689eaa9ba10 [2021-10-16 02:56:13,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:56:13,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:56:13,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:56:13,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:56:13,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:56:13,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:13" (1/1) ... [2021-10-16 02:56:13,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdbf147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:13, skipping insertion in model container [2021-10-16 02:56:13,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:13" (1/1) ... [2021-10-16 02:56:13,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:56:13,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:56:13,915 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/sv-benchmarks/c/eca-rers2012/Problem10_label10.c[5544,5557] [2021-10-16 02:56:14,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:56:14,157 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:56:14,197 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/sv-benchmarks/c/eca-rers2012/Problem10_label10.c[5544,5557] [2021-10-16 02:56:14,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:56:14,307 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:56:14,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14 WrapperNode [2021-10-16 02:56:14,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:56:14,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:56:14,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:56:14,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:56:14,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:56:14,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:56:14,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:56:14,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:56:14,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:56:14,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:56:14,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:56:14,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:56:14,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (1/1) ... [2021-10-16 02:56:14,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:56:14,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:56:14,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:56:14,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:56:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:56:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:56:14,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:56:14,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:56:24,227 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:56:24,228 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:56:24,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:24 BoogieIcfgContainer [2021-10-16 02:56:24,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:56:24,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:56:24,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:56:24,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:56:24,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:56:13" (1/3) ... [2021-10-16 02:56:24,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4638eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:24, skipping insertion in model container [2021-10-16 02:56:24,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:14" (2/3) ... [2021-10-16 02:56:24,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4638eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:24, skipping insertion in model container [2021-10-16 02:56:24,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:24" (3/3) ... [2021-10-16 02:56:24,242 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label10.c [2021-10-16 02:56:24,249 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:56:24,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:56:24,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:56:24,313 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 [2021-10-16 02:56:24,313 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:56:24,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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) [2021-10-16 02:56:24,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:56:24,334 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:56:24,335 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:56:24,335 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:56:24,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:56:24,342 INFO L82 PathProgramCache]: Analyzing trace with hash 885184618, now seen corresponding path program 1 times [2021-10-16 02:56:24,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:56:24,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775731154] [2021-10-16 02:56:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:56:24,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:56:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:56:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:56:24,694 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:56:24,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775731154] [2021-10-16 02:56:24,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775731154] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:56:24,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:56:24,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:56:24,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302113392] [2021-10-16 02:56:24,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:56:24,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:56:24,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:56:24,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:56:24,723 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-16 02:56:24,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:56:24,791 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-16 02:56:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:56:24,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-10-16 02:56:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:56:24,803 INFO L225 Difference]: With dead ends: 23 [2021-10-16 02:56:24,803 INFO L226 Difference]: Without dead ends: 11 [2021-10-16 02:56:24,806 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:56:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-16 02:56:24,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-16 02:56:24,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2021-10-16 02:56:24,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-16 02:56:24,840 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-16 02:56:24,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:56:24,841 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-16 02:56:24,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-16 02:56:24,841 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-16 02:56:24,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:56:24,842 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:56:24,842 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-16 02:56:24,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:56:24,843 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:56:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:56:24,844 INFO L82 PathProgramCache]: Analyzing trace with hash 629867921, now seen corresponding path program 1 times [2021-10-16 02:56:24,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:56:24,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891537507] [2021-10-16 02:56:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:56:24,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:56:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:56:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:56:25,293 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:56:25,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891537507] [2021-10-16 02:56:25,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891537507] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:56:25,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028709619] [2021-10-16 02:56:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:56:25,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:56:25,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:56:25,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:56:25,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:56:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:56:25,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 02:56:25,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:56:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:56:42,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:57:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:57:02,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028709619] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:57:02,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:57:02,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 4] total 8 [2021-10-16 02:57:02,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540446663] [2021-10-16 02:57:02,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:57:02,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:57:02,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:57:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:57:02,269 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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) [2021-10-16 02:57:02,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:57:02,311 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-16 02:57:02,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:57:02,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 9 [2021-10-16 02:57:02,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:57:02,314 INFO L225 Difference]: With dead ends: 10 [2021-10-16 02:57:02,314 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:57:02,315 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:57:02,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:57:02,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:57:02,316 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) [2021-10-16 02:57:02,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:57:02,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-16 02:57:02,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:57:02,317 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:57:02,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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) [2021-10-16 02:57:02,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:57:02,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:57:02,320 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:02,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-16 02:57:02,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-16 02:57:02,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:57:02,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:02,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:02,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:02,562 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-16 02:57:02,562 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:57:02,563 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:57:02,563 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-16 02:57:02,563 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:57:02,564 INFO L853 garLoopResultBuilder]: At program point L157-1(lines 30 584) the Hoare annotation is: (or (not (= ~a19~0 6)) (<= ~a1~0 218)) [2021-10-16 02:57:02,564 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-16 02:57:02,564 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= ~a19~0 6)) (<= ~a1~0 218)) [2021-10-16 02:57:02,564 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2021-10-16 02:57:02,569 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:57:02,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:57:02 BoogieIcfgContainer [2021-10-16 02:57:02,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:57:02,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:57:02,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:57:02,585 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:57:02,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:24" (3/4) ... [2021-10-16 02:57:02,589 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:57:02,616 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 182 nodes and edges [2021-10-16 02:57:02,618 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-16 02:57:02,620 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-16 02:57:02,622 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:57:02,824 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:57:02,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:57:02,826 INFO L168 Benchmark]: Toolchain (without parser) took 49264.91 ms. Allocated memory was 140.5 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 102.8 MB in the beginning and 921.9 MB in the end (delta: -819.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. [2021-10-16 02:57:02,827 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 113.4 MB in the beginning and 113.4 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:57:02,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.40 ms. Allocated memory is still 140.5 MB. Free memory was 102.6 MB in the beginning and 98.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:02,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.61 ms. Allocated memory is still 140.5 MB. Free memory was 98.0 MB in the beginning and 90.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:02,829 INFO L168 Benchmark]: Boogie Preprocessor took 142.58 ms. Allocated memory is still 140.5 MB. Free memory was 90.5 MB in the beginning and 85.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:02,829 INFO L168 Benchmark]: RCFGBuilder took 9665.18 ms. Allocated memory was 140.5 MB in the beginning and 276.8 MB in the end (delta: 136.3 MB). Free memory was 85.5 MB in the beginning and 94.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 140.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:02,830 INFO L168 Benchmark]: TraceAbstraction took 38350.45 ms. Allocated memory was 276.8 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 93.8 MB in the beginning and 938.7 MB in the end (delta: -844.9 MB). Peak memory consumption was 996.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:02,831 INFO L168 Benchmark]: Witness Printer took 239.43 ms. Allocated memory is still 2.1 GB. Free memory was 938.7 MB in the beginning and 921.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:02,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 113.4 MB in the beginning and 113.4 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 743.40 ms. Allocated memory is still 140.5 MB. Free memory was 102.6 MB in the beginning and 98.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.61 ms. Allocated memory is still 140.5 MB. Free memory was 98.0 MB in the beginning and 90.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 142.58 ms. Allocated memory is still 140.5 MB. Free memory was 90.5 MB in the beginning and 85.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9665.18 ms. Allocated memory was 140.5 MB in the beginning and 276.8 MB in the end (delta: 136.3 MB). Free memory was 85.5 MB in the beginning and 94.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 140.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 38350.45 ms. Allocated memory was 276.8 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 93.8 MB in the beginning and 938.7 MB in the end (delta: -844.9 MB). Peak memory consumption was 996.4 MB. Max. memory is 16.1 GB. * Witness Printer took 239.43 ms. Allocated memory is still 2.1 GB. Free memory was 938.7 MB in the beginning and 921.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 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 - PositiveResult [Line: 158]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38265.9ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 10.8ms, AutomataDifference: 149.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 22.2ms, InitialAbstractionConstructionTime: 10.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 152.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, 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: 17.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 17 HoareAnnotationTreeSize, 3 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 6.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 9.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 23.8ms SsaConstructionTime, 293.8ms SatisfiabilityAnalysisTime, 37307.3ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 463 SizeOfPredicates, 6 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: !(a19 == 6) || a1 <= 218 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: !(a19 == 6) || a1 <= 218 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:57:02,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eeaa5aa-bdb9-4895-b150-af3b3e105ea1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...