./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/shared_mem2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/shared_mem2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan --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 e7852fa616656cf29d8d53332cfc28f5a43f0ad1 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:38:22,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:22,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:22,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:22,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:22,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:22,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:22,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:22,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:22,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:22,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:22,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:22,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:22,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:22,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:22,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:22,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:22,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:22,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:22,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:22,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:22,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:22,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:22,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:22,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:22,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:22,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:22,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:22,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:22,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:22,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:22,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:22,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:22,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:22,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:22,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:22,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:22,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:22,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:22,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:22,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:22,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:38:22,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:22,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:22,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:22,371 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:22,372 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:22,372 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:22,372 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:38:22,372 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:22,373 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:22,373 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:38:22,374 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:38:22,374 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:22,375 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:38:22,375 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:38:22,375 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:38:22,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:22,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:22,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:38:22,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:22,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:22,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:22,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:22,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:22,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:22,379 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:22,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:22,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:22,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:22,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:22,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:22,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:22,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:22,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:22,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:22,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:22,382 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:38:22,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:38:22,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:22,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:22,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:22,383 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-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7852fa616656cf29d8d53332cfc28f5a43f0ad1 [2020-11-28 07:38:22,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:22,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:22,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:22,785 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:22,785 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:22,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/../../sv-benchmarks/c/heap-data/shared_mem2.i [2020-11-28 07:38:22,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/data/9ff018725/4e42a0a5520b446ca91b1b4627ddf256/FLAGe28f71a38 [2020-11-28 07:38:23,420 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:23,421 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/sv-benchmarks/c/heap-data/shared_mem2.i [2020-11-28 07:38:23,443 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/data/9ff018725/4e42a0a5520b446ca91b1b4627ddf256/FLAGe28f71a38 [2020-11-28 07:38:23,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/data/9ff018725/4e42a0a5520b446ca91b1b4627ddf256 [2020-11-28 07:38:23,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:23,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:23,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:23,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:23,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:23,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:23" (1/1) ... [2020-11-28 07:38:23,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbaa470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:23, skipping insertion in model container [2020-11-28 07:38:23,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:23" (1/1) ... [2020-11-28 07:38:23,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:23,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:24,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:24,279 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:38:24,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:24,412 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:38:24,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24 WrapperNode [2020-11-28 07:38:24,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:24,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:24,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:38:24,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:38:24,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... [2020-11-28 07:38:24,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... [2020-11-28 07:38:24,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:24,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:38:24,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:38:24,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:38:24,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... [2020-11-28 07:38:24,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... [2020-11-28 07:38:24,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... [2020-11-28 07:38:24,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... [2020-11-28 07:38:24,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... [2020-11-28 07:38:24,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... [2020-11-28 07:38:24,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... [2020-11-28 07:38:24,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:38:24,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:38:24,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:38:24,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:38:24,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:38:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:38:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 07:38:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 07:38:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:38:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 07:38:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:38:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:38:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:38:25,374 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:38:25,374 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 07:38:25,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:25 BoogieIcfgContainer [2020-11-28 07:38:25,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:38:25,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:38:25,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:38:25,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:38:25,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:38:23" (1/3) ... [2020-11-28 07:38:25,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560aacc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:25, skipping insertion in model container [2020-11-28 07:38:25,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:24" (2/3) ... [2020-11-28 07:38:25,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560aacc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:25, skipping insertion in model container [2020-11-28 07:38:25,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:25" (3/3) ... [2020-11-28 07:38:25,385 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2020-11-28 07:38:25,396 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:38:25,401 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:38:25,413 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:38:25,452 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:38:25,452 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:38:25,452 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:38:25,452 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:38:25,452 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:38:25,452 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:38:25,452 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:38:25,452 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:38:25,463 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-28 07:38:25,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:38:25,467 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:25,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:25,468 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:25,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:25,474 INFO L82 PathProgramCache]: Analyzing trace with hash 921187504, now seen corresponding path program 1 times [2020-11-28 07:38:25,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:25,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371012355] [2020-11-28 07:38:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:25,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371012355] [2020-11-28 07:38:25,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:25,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:38:25,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826731200] [2020-11-28 07:38:25,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:38:25,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:25,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:38:25,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:38:25,658 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-11-28 07:38:25,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:25,673 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2020-11-28 07:38:25,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:38:25,674 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-28 07:38:25,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:25,682 INFO L225 Difference]: With dead ends: 23 [2020-11-28 07:38:25,682 INFO L226 Difference]: Without dead ends: 11 [2020-11-28 07:38:25,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:38:25,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-28 07:38:25,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 07:38:25,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 07:38:25,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-11-28 07:38:25,714 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2020-11-28 07:38:25,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:25,714 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-11-28 07:38:25,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:38:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-28 07:38:25,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:38:25,715 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:25,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:25,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:38:25,715 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:25,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:25,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1369640897, now seen corresponding path program 1 times [2020-11-28 07:38:25,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:25,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493373212] [2020-11-28 07:38:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:25,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493373212] [2020-11-28 07:38:25,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:25,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:38:25,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424894462] [2020-11-28 07:38:25,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:38:25,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:25,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:38:25,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:38:25,842 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 4 states. [2020-11-28 07:38:25,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:25,949 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-11-28 07:38:25,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:38:25,950 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-28 07:38:25,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:25,951 INFO L225 Difference]: With dead ends: 21 [2020-11-28 07:38:25,951 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 07:38:25,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:38:25,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 07:38:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 07:38:25,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:38:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-11-28 07:38:25,956 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2020-11-28 07:38:25,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:25,956 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-11-28 07:38:25,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:38:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-11-28 07:38:25,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 07:38:25,957 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:25,957 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:25,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:38:25,958 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:25,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:25,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1583902652, now seen corresponding path program 1 times [2020-11-28 07:38:25,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:25,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839962610] [2020-11-28 07:38:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:26,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839962610] [2020-11-28 07:38:26,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105277236] [2020-11-28 07:38:26,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:38:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:26,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-28 07:38:26,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:26,603 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 24 [2020-11-28 07:38:26,604 INFO L350 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-11-28 07:38:26,605 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 186 treesize of output 200 [2020-11-28 07:38:26,610 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:26,851 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-11-28 07:38:26,852 INFO L625 ElimStorePlain]: treesize reduction 115, result has 49.1 percent of original size [2020-11-28 07:38:26,856 INFO L441 ElimStorePlain]: Different costs {0=[|v_#memory_int_49|], 2=[|v_#memory_int_46|]} [2020-11-28 07:38:26,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 07:38:26,880 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2020-11-28 07:38:26,881 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:26,943 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:26,969 INFO L350 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2020-11-28 07:38:26,970 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 21 [2020-11-28 07:38:26,971 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:27,018 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:27,036 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,045 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:27,048 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:96, output treesize:68 [2020-11-28 07:38:27,058 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,118 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,355 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,365 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,368 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,373 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,381 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,383 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,385 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-28 07:38:27,386 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,408 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,411 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,421 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,428 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,430 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,433 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,435 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,457 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,463 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,467 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,470 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,472 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,474 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,483 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,485 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,511 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,514 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,522 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,526 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,528 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,529 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-28 07:38:27,530 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,541 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,542 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,549 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,553 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,555 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,557 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,561 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,576 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,579 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,582 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,585 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,588 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,590 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,593 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,596 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,606 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,609 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,611 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,612 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-28 07:38:27,613 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,621 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,623 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,630 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,633 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,635 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,639 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,642 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,651 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,653 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,656 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,660 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,663 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,665 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,668 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,670 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-28 07:38:27,737 INFO L441 ElimStorePlain]: Different costs {10=[|#valid|], 15=[|v_#valid_21|]} [2020-11-28 07:38:27,877 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:27,877 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 72 [2020-11-28 07:38:27,879 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:27,965 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:27,965 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37 [2020-11-28 07:38:27,967 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:27,980 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-28 07:38:27,980 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:28,050 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:28,051 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37 [2020-11-28 07:38:28,053 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:28,103 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:28,104 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37 [2020-11-28 07:38:28,106 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:29,816 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-11-28 07:38:29,817 INFO L625 ElimStorePlain]: treesize reduction 202, result has 76.3 percent of original size [2020-11-28 07:38:30,018 INFO L244 Elim1Store]: Index analysis took 175 ms [2020-11-28 07:38:30,114 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:30,114 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 31 treesize of output 107 [2020-11-28 07:38:30,115 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:30,251 INFO L244 Elim1Store]: Index analysis took 120 ms [2020-11-28 07:38:30,290 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:30,290 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 72 [2020-11-28 07:38:30,291 INFO L545 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:30,392 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:30,392 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 72 [2020-11-28 07:38:30,393 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:30,578 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:30,579 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 72 [2020-11-28 07:38:30,580 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:31,437 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2020-11-28 07:38:31,438 INFO L625 ElimStorePlain]: treesize reduction 151, result has 75.9 percent of original size [2020-11-28 07:38:31,442 INFO L441 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_42|, |v_#memory_$Pointer$.offset_42|, |v_#memory_$Pointer$.base_43|, |v_#memory_$Pointer$.offset_43|, |v_#memory_int_48|], 4=[|v_#memory_int_47|], 18=[|v_#memory_int_50|]} [2020-11-28 07:38:31,453 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:31,458 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:31,463 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:31,858 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-11-28 07:38:31,860 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:31,866 INFO L545 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:31,871 INFO L545 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:31,877 INFO L545 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:32,129 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-28 07:38:32,130 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:32,130 INFO L513 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.base_43| vanished before elimination [2020-11-28 07:38:32,130 INFO L513 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_43| vanished before elimination [2020-11-28 07:38:32,135 INFO L545 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:32,150 INFO L545 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:32,159 INFO L545 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:32,488 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-28 07:38:32,488 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:32,496 INFO L545 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:32,500 INFO L545 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:32,506 INFO L545 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:32,817 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-11-28 07:38:32,818 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:32,881 INFO L350 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2020-11-28 07:38:32,881 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 48 [2020-11-28 07:38:32,882 INFO L545 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:32,938 INFO L350 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2020-11-28 07:38:32,938 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 48 [2020-11-28 07:38:32,939 INFO L545 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:33,012 INFO L350 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2020-11-28 07:38:33,013 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 48 [2020-11-28 07:38:33,013 INFO L545 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:33,306 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-11-28 07:38:33,306 INFO L625 ElimStorePlain]: treesize reduction 8, result has 97.4 percent of original size [2020-11-28 07:38:33,357 INFO L545 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, 7 dim-2 vars, End of recursive call: 6 dim-0 vars, and 5 xjuncts. [2020-11-28 07:38:33,357 INFO L244 ElimStorePlain]: Needed 25 recursive calls to eliminate 16 variables, input treesize:972, output treesize:137 [2020-11-28 07:38:38,507 WARN L193 SmtUtils]: Spent 4.10 s on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2020-11-28 07:38:40,720 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 44 [2020-11-28 07:38:40,727 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-28 07:38:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:40,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:40,833 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-28 07:38:40,881 INFO L441 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_42|, |v_#memory_$Pointer$.offset_42|, |v_#memory_int_48|, |#memory_$Pointer$.base|, |#memory_$Pointer$.offset|], 2=[|v_#memory_int_51|, |v_#memory_int_47|]} [2020-11-28 07:38:40,886 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:40,955 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:40,960 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 07:38:41,019 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:41,023 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:41,069 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:41,069 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.base| vanished before elimination [2020-11-28 07:38:41,069 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.offset| vanished before elimination [2020-11-28 07:38:41,073 INFO L545 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:41,122 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:41,127 INFO L545 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 07:38:41,160 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:38:41,163 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 7 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2020-11-28 07:38:41,164 INFO L244 ElimStorePlain]: Needed 6 recursive calls to eliminate 10 variables, input treesize:135, output treesize:124 [2020-11-28 07:38:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:41,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1119995012] [2020-11-28 07:38:41,319 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2020-11-28 07:38:41,323 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:38:41,327 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:38:41,333 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:38:41,334 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:38:44,636 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:38:44,774 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2020-11-28 07:38:44,919 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-11-28 07:38:45,070 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-11-28 07:38:45,418 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2020-11-28 07:38:45,536 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:38:45,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-28 07:38:45,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6] total 12 [2020-11-28 07:38:45,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009089495] [2020-11-28 07:38:45,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-28 07:38:45,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:45,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 07:38:45,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=310, Unknown=2, NotChecked=0, Total=380 [2020-11-28 07:38:45,538 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 13 states. [2020-11-28 07:38:49,906 WARN L193 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-11-28 07:38:59,943 WARN L193 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-11-28 07:39:02,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:02,632 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2020-11-28 07:39:02,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 07:39:02,632 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 12 [2020-11-28 07:39:02,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:02,633 INFO L225 Difference]: With dead ends: 25 [2020-11-28 07:39:02,633 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:39:02,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=126, Invalid=521, Unknown=3, NotChecked=0, Total=650 [2020-11-28 07:39:02,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:39:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:39:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:39:02,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:39:02,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-28 07:39:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:02,635 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:39:02,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-28 07:39:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:39:02,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:39:02,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-28 07:39:02,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:39:02,905 INFO L274 CegarLoopResult]: For program point L576(lines 576 602) no Hoare annotation was computed. [2020-11-28 07:39:02,906 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:39:02,906 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-11-28 07:39:02,906 INFO L270 CegarLoopResult]: At program point L586-2(lines 584 593) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~m~0.base ULTIMATE.start_main_~head~0.base)) (= (select (select |#memory_int| ULTIMATE.start_main_~m~0.base) ULTIMATE.start_main_~m~0.offset) 0) (not (= ULTIMATE.start_main_~m~0.base ULTIMATE.start_main_~list~0.base)) (= (select |#valid| ULTIMATE.start_main_~m~0.base) 1)) [2020-11-28 07:39:02,906 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:39:02,906 INFO L274 CegarLoopResult]: For program point L595-1(lines 595 599) no Hoare annotation was computed. [2020-11-28 07:39:02,906 INFO L270 CegarLoopResult]: At program point L595-3(lines 595 599) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| ULTIMATE.start_main_~m~0.base) ULTIMATE.start_main_~m~0.offset))) (or (= .cse0 100) (< .cse0 100))) [2020-11-28 07:39:02,906 INFO L274 CegarLoopResult]: For program point L595-4(lines 595 599) no Hoare annotation was computed. [2020-11-28 07:39:02,906 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-11-28 07:39:02,906 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-11-28 07:39:02,906 INFO L274 CegarLoopResult]: For program point L600(lines 600 601) no Hoare annotation was computed. [2020-11-28 07:39:02,907 INFO L274 CegarLoopResult]: For program point L584-1(lines 584 593) no Hoare annotation was computed. [2020-11-28 07:39:02,907 INFO L274 CegarLoopResult]: For program point L584-3(lines 584 593) no Hoare annotation was computed. [2020-11-28 07:39:02,912 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:02,918 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:02,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:02,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:02,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:02,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:02,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:02 BoogieIcfgContainer [2020-11-28 07:39:02,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:02,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:02,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:02,929 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:02,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:25" (3/4) ... [2020-11-28 07:39:02,932 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:39:02,940 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 07:39:02,940 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:39:02,941 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:39:02,941 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:39:02,980 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2e9f002d-04a3-4cea-b03c-758f2402450c/bin/utaipan/witness.graphml [2020-11-28 07:39:02,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:02,981 INFO L168 Benchmark]: Toolchain (without parser) took 39254.35 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 84.3 MB in the beginning and 32.6 MB in the end (delta: 51.7 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:02,981 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:02,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.26 ms. Allocated memory is still 113.2 MB. Free memory was 84.0 MB in the beginning and 78.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:02,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.58 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 77.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:02,983 INFO L168 Benchmark]: Boogie Preprocessor took 58.65 ms. Allocated memory is still 113.2 MB. Free memory was 77.0 MB in the beginning and 75.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:02,983 INFO L168 Benchmark]: RCFGBuilder took 830.73 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 78.5 MB in the end (delta: -3.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:02,986 INFO L168 Benchmark]: TraceAbstraction took 37546.28 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 77.9 MB in the beginning and 35.8 MB in the end (delta: 42.2 MB). Peak memory consumption was 65.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:02,986 INFO L168 Benchmark]: Witness Printer took 55.76 ms. Allocated memory is still 136.3 MB. Free memory was 35.8 MB in the beginning and 32.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:02,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 683.26 ms. Allocated memory is still 113.2 MB. Free memory was 84.0 MB in the beginning and 78.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.58 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 77.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.65 ms. Allocated memory is still 113.2 MB. Free memory was 77.0 MB in the beginning and 75.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 830.73 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 78.5 MB in the end (delta: -3.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 37546.28 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 77.9 MB in the beginning and 35.8 MB in the end (delta: 42.2 MB). Peak memory consumption was 65.4 MB. Max. memory is 16.1 GB. * Witness Printer took 55.76 ms. Allocated memory is still 136.3 MB. Free memory was 35.8 MB in the beginning and 32.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant [2020-11-28 07:39:03,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:03,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((!(m == head) && unknown-#memory_int-unknown[m][m] == 0) && !(m == list)) && \valid[m] == 1 - InvariantResult [Line: 595]: Loop Invariant [2020-11-28 07:39:03,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:03,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:03,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:39:03,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: unknown-#memory_int-unknown[m][m] == 100 || unknown-#memory_int-unknown[m][m] < 100 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 37.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 17.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 14 SDslu, 24 SDs, 0 SdLazy, 61 SolverSat, 18 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 36 HoareAnnotationTreeSize, 2 FomulaSimplifications, 184 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 162 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 9 QuantifiedInterpolants, 10935 SizeOfPredicates, 27 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...