./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.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_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9aa86be9eb0317030839433587db2b1c5b5e93d6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:12:57,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:12:57,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:12:57,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:12:57,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:12:57,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:12:57,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:12:57,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:12:57,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:12:57,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:12:57,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:12:57,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:12:57,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:12:57,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:12:57,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:12:57,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:12:57,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:12:57,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:12:57,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:12:57,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:12:57,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:12:57,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:12:57,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:12:57,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:12:57,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:12:57,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:12:57,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:12:57,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:12:57,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:12:57,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:12:57,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:12:57,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:12:57,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:12:57,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:12:57,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:12:57,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:12:57,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:12:57,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:12:57,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:12:57,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:12:57,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:12:57,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:12:57,570 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:12:57,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:12:57,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:12:57,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:12:57,572 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:12:57,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:12:57,572 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:12:57,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:12:57,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:12:57,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:12:57,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:12:57,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:12:57,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:12:57,574 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:12:57,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:12:57,574 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:12:57,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:12:57,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:12:57,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:12:57,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:12:57,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:12:57,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:12:57,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:12:57,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:12:57,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:12:57,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:12:57,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:12:57,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:12:57,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:12:57,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9aa86be9eb0317030839433587db2b1c5b5e93d6 [2020-11-29 18:12:57,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:12:57,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:12:57,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:12:57,955 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:12:57,957 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:12:57,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i [2020-11-29 18:12:58,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/data/af89b6493/303d2a55d23a4cb7a0c007ad52a5c1fa/FLAGecd60c5f3 [2020-11-29 18:12:58,668 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:12:58,670 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i [2020-11-29 18:12:58,695 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/data/af89b6493/303d2a55d23a4cb7a0c007ad52a5c1fa/FLAGecd60c5f3 [2020-11-29 18:12:58,953 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/data/af89b6493/303d2a55d23a4cb7a0c007ad52a5c1fa [2020-11-29 18:12:58,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:12:58,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:12:58,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:12:58,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:12:58,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:12:58,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:12:58" (1/1) ... [2020-11-29 18:12:58,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e8b0e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:58, skipping insertion in model container [2020-11-29 18:12:58,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:12:58" (1/1) ... [2020-11-29 18:12:58,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:12:59,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:12:59,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:12:59,497 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:12:59,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:12:59,612 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:12:59,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59 WrapperNode [2020-11-29 18:12:59,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:12:59,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:12:59,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:12:59,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:12:59,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... [2020-11-29 18:12:59,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... [2020-11-29 18:12:59,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:12:59,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:12:59,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:12:59,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:12:59,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... [2020-11-29 18:12:59,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... [2020-11-29 18:12:59,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... [2020-11-29 18:12:59,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... [2020-11-29 18:12:59,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... [2020-11-29 18:12:59,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... [2020-11-29 18:12:59,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... [2020-11-29 18:12:59,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:12:59,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:12:59,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:12:59,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:12:59,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/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 [2020-11-29 18:12:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:12:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:12:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 18:12:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 18:12:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:12:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 18:12:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:12:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:12:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:12:59,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:13:00,633 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:13:00,634 INFO L298 CfgBuilder]: Removed 35 assume(true) statements. [2020-11-29 18:13:00,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:13:00 BoogieIcfgContainer [2020-11-29 18:13:00,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:13:00,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:13:00,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:13:00,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:13:00,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:12:58" (1/3) ... [2020-11-29 18:13:00,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3789f61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:13:00, skipping insertion in model container [2020-11-29 18:13:00,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:59" (2/3) ... [2020-11-29 18:13:00,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3789f61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:13:00, skipping insertion in model container [2020-11-29 18:13:00,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:13:00" (3/3) ... [2020-11-29 18:13:00,647 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-11-29 18:13:00,660 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:13:00,665 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-11-29 18:13:00,679 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-29 18:13:00,708 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:13:00,708 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:13:00,709 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:13:00,709 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:13:00,709 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:13:00,709 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:13:00,709 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:13:00,709 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:13:00,727 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-11-29 18:13:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 18:13:00,733 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:00,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:00,734 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:00,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:00,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1889840994, now seen corresponding path program 1 times [2020-11-29 18:13:00,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:00,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834843783] [2020-11-29 18:13:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:00,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834843783] [2020-11-29 18:13:00,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:13:00,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:13:00,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208125379] [2020-11-29 18:13:00,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:13:00,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:00,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:13:00,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:13:00,967 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2020-11-29 18:13:00,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:00,988 INFO L93 Difference]: Finished difference Result 113 states and 185 transitions. [2020-11-29 18:13:00,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:13:00,990 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-29 18:13:00,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:00,999 INFO L225 Difference]: With dead ends: 113 [2020-11-29 18:13:00,999 INFO L226 Difference]: Without dead ends: 48 [2020-11-29 18:13:01,003 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 [2020-11-29 18:13:01,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-11-29 18:13:01,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-11-29 18:13:01,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-29 18:13:01,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2020-11-29 18:13:01,040 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 7 [2020-11-29 18:13:01,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:01,040 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2020-11-29 18:13:01,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:13:01,041 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2020-11-29 18:13:01,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 18:13:01,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:01,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:01,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:13:01,042 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:01,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:01,043 INFO L82 PathProgramCache]: Analyzing trace with hash 180153549, now seen corresponding path program 1 times [2020-11-29 18:13:01,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:01,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697349720] [2020-11-29 18:13:01,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:01,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:01,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697349720] [2020-11-29 18:13:01,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:13:01,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:13:01,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694454384] [2020-11-29 18:13:01,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:13:01,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:01,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:13:01,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:13:01,145 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 4 states. [2020-11-29 18:13:01,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:01,294 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2020-11-29 18:13:01,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:13:01,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-29 18:13:01,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:01,296 INFO L225 Difference]: With dead ends: 54 [2020-11-29 18:13:01,296 INFO L226 Difference]: Without dead ends: 51 [2020-11-29 18:13:01,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:13:01,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-29 18:13:01,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2020-11-29 18:13:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-29 18:13:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2020-11-29 18:13:01,307 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 8 [2020-11-29 18:13:01,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:01,308 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2020-11-29 18:13:01,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:13:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2020-11-29 18:13:01,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:13:01,309 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:01,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:01,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:13:01,309 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:01,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:01,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1271597613, now seen corresponding path program 1 times [2020-11-29 18:13:01,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:01,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193019315] [2020-11-29 18:13:01,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:01,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193019315] [2020-11-29 18:13:01,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:13:01,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:13:01,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314301442] [2020-11-29 18:13:01,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:13:01,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:01,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:13:01,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:13:01,456 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 4 states. [2020-11-29 18:13:01,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:01,598 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2020-11-29 18:13:01,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:13:01,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-29 18:13:01,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:01,600 INFO L225 Difference]: With dead ends: 45 [2020-11-29 18:13:01,601 INFO L226 Difference]: Without dead ends: 42 [2020-11-29 18:13:01,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:13:01,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-29 18:13:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-29 18:13:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-29 18:13:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2020-11-29 18:13:01,609 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 9 [2020-11-29 18:13:01,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:01,610 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2020-11-29 18:13:01,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:13:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2020-11-29 18:13:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 18:13:01,611 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:01,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:01,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:13:01,612 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:01,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:01,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1429982942, now seen corresponding path program 1 times [2020-11-29 18:13:01,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:01,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710627515] [2020-11-29 18:13:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:01,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710627515] [2020-11-29 18:13:01,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:13:01,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:13:01,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27300228] [2020-11-29 18:13:01,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:13:01,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:01,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:13:01,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:13:01,795 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 5 states. [2020-11-29 18:13:02,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:02,104 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2020-11-29 18:13:02,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:13:02,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-29 18:13:02,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:02,106 INFO L225 Difference]: With dead ends: 70 [2020-11-29 18:13:02,106 INFO L226 Difference]: Without dead ends: 67 [2020-11-29 18:13:02,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:13:02,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-29 18:13:02,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 49. [2020-11-29 18:13:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-29 18:13:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-11-29 18:13:02,116 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 11 [2020-11-29 18:13:02,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:02,117 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-11-29 18:13:02,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:13:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-11-29 18:13:02,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 18:13:02,118 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:02,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:02,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:13:02,119 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:02,120 INFO L82 PathProgramCache]: Analyzing trace with hash 877619508, now seen corresponding path program 1 times [2020-11-29 18:13:02,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:02,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327796050] [2020-11-29 18:13:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:02,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:02,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327796050] [2020-11-29 18:13:02,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:13:02,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:13:02,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541123518] [2020-11-29 18:13:02,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:13:02,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:02,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:13:02,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:13:02,268 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 4 states. [2020-11-29 18:13:02,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:02,451 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-11-29 18:13:02,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:13:02,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-29 18:13:02,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:02,457 INFO L225 Difference]: With dead ends: 49 [2020-11-29 18:13:02,457 INFO L226 Difference]: Without dead ends: 46 [2020-11-29 18:13:02,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:13:02,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-29 18:13:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-11-29 18:13:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-29 18:13:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-11-29 18:13:02,465 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 12 [2020-11-29 18:13:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:02,465 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-11-29 18:13:02,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:13:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-11-29 18:13:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 18:13:02,466 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:02,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:02,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 18:13:02,470 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:02,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:02,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1589233608, now seen corresponding path program 1 times [2020-11-29 18:13:02,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:02,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386713810] [2020-11-29 18:13:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:02,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386713810] [2020-11-29 18:13:02,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:13:02,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:13:02,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921932281] [2020-11-29 18:13:02,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:13:02,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:02,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:13:02,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:13:02,634 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 4 states. [2020-11-29 18:13:02,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:02,734 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-11-29 18:13:02,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:13:02,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-29 18:13:02,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:02,736 INFO L225 Difference]: With dead ends: 46 [2020-11-29 18:13:02,736 INFO L226 Difference]: Without dead ends: 43 [2020-11-29 18:13:02,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:13:02,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-11-29 18:13:02,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-11-29 18:13:02,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-11-29 18:13:02,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-11-29 18:13:02,745 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 14 [2020-11-29 18:13:02,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:02,745 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-11-29 18:13:02,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:13:02,746 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-11-29 18:13:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 18:13:02,747 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:02,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:02,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 18:13:02,747 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:02,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:02,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1249274145, now seen corresponding path program 1 times [2020-11-29 18:13:02,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:02,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692846988] [2020-11-29 18:13:02,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:02,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692846988] [2020-11-29 18:13:02,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:13:02,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:13:02,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662189257] [2020-11-29 18:13:02,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:13:02,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:02,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:13:02,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:13:02,870 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 5 states. [2020-11-29 18:13:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:03,057 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2020-11-29 18:13:03,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:13:03,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-29 18:13:03,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:03,060 INFO L225 Difference]: With dead ends: 60 [2020-11-29 18:13:03,060 INFO L226 Difference]: Without dead ends: 46 [2020-11-29 18:13:03,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:13:03,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-29 18:13:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2020-11-29 18:13:03,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-29 18:13:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-11-29 18:13:03,071 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 15 [2020-11-29 18:13:03,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:03,071 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-11-29 18:13:03,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:13:03,072 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-11-29 18:13:03,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 18:13:03,073 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:03,073 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:03,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 18:13:03,075 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:03,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:03,077 INFO L82 PathProgramCache]: Analyzing trace with hash -967808217, now seen corresponding path program 1 times [2020-11-29 18:13:03,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:03,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809901493] [2020-11-29 18:13:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:03,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809901493] [2020-11-29 18:13:03,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974187792] [2020-11-29 18:13:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/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 [2020-11-29 18:13:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:03,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 18:13:03,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:13:03,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:03,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:03,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:03,416 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2020-11-29 18:13:03,416 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:03,435 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:03,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:03,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:03,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:03,453 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2020-11-29 18:13:03,453 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:03,470 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:03,471 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:03,471 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:33 [2020-11-29 18:13:03,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:03,573 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2020-11-29 18:13:03,576 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:03,589 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:03,598 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-29 18:13:03,599 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2020-11-29 18:13:03,601 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:03,609 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:03,609 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:03,609 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7 [2020-11-29 18:13:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:03,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:13:03,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-11-29 18:13:03,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883912972] [2020-11-29 18:13:03,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 18:13:03,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:03,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 18:13:03,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:13:03,621 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 7 states. [2020-11-29 18:13:03,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:03,917 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2020-11-29 18:13:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:13:03,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-29 18:13:03,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:03,918 INFO L225 Difference]: With dead ends: 64 [2020-11-29 18:13:03,919 INFO L226 Difference]: Without dead ends: 40 [2020-11-29 18:13:03,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:13:03,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-29 18:13:03,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-11-29 18:13:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 18:13:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-11-29 18:13:03,925 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 18 [2020-11-29 18:13:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:03,925 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-11-29 18:13:03,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 18:13:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-11-29 18:13:03,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 18:13:03,926 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:03,927 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:04,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-11-29 18:13:04,128 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:04,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:04,128 INFO L82 PathProgramCache]: Analyzing trace with hash -2020802177, now seen corresponding path program 1 times [2020-11-29 18:13:04,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:04,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782286733] [2020-11-29 18:13:04,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:04,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782286733] [2020-11-29 18:13:04,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078882254] [2020-11-29 18:13:04,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:13:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:04,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 32 conjunts are in the unsatisfiable core [2020-11-29 18:13:04,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:13:04,639 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-11-29 18:13:04,640 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-11-29 18:13:04,640 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:04,659 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:04,668 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-11-29 18:13:04,668 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:04,684 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:04,686 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:04,686 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:26 [2020-11-29 18:13:04,978 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:04,979 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-11-29 18:13:04,980 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:05,115 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-29 18:13:05,116 INFO L625 ElimStorePlain]: treesize reduction 14, result has 88.6 percent of original size [2020-11-29 18:13:05,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:05,144 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-11-29 18:13:05,144 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:05,202 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,214 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:05,249 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:05,265 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:05,292 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,292 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 45 treesize of output 48 [2020-11-29 18:13:05,293 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:05,363 INFO L625 ElimStorePlain]: treesize reduction 20, result has 78.9 percent of original size [2020-11-29 18:13:05,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:05,377 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:05,407 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,416 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:05,417 INFO L244 ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:111, output treesize:24 [2020-11-29 18:13:05,533 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,534 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-11-29 18:13:05,534 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:05,621 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,625 INFO L441 ElimStorePlain]: Different costs {2=[|v_#memory_int_40|, |v_#memory_$Pointer$.base_28|, |v_#memory_int_38|, |v_#memory_int_39|], 4=[|v_#memory_int_42|]} [2020-11-29 18:13:05,632 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:05,692 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:05,697 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:05,747 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,751 INFO L545 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:05,809 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,813 INFO L545 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:05,840 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:05,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:05,933 INFO L350 Elim1Store]: treesize reduction 65, result has 46.7 percent of original size [2020-11-29 18:13:05,933 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 85 [2020-11-29 18:13:05,934 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:06,018 INFO L625 ElimStorePlain]: treesize reduction 18, result has 80.9 percent of original size [2020-11-29 18:13:06,060 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:06,061 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 11 variables, input treesize:246, output treesize:40 [2020-11-29 18:13:06,350 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 13 [2020-11-29 18:13:06,352 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:06,363 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:06,365 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:06,365 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:49, output treesize:3 [2020-11-29 18:13:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:06,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:13:06,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-11-29 18:13:06,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849765487] [2020-11-29 18:13:06,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 18:13:06,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:06,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:13:06,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:13:06,377 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 10 states. [2020-11-29 18:13:13,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:13,190 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2020-11-29 18:13:13,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 18:13:13,191 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-11-29 18:13:13,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:13,193 INFO L225 Difference]: With dead ends: 74 [2020-11-29 18:13:13,193 INFO L226 Difference]: Without dead ends: 71 [2020-11-29 18:13:13,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-29 18:13:13,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-29 18:13:13,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 37. [2020-11-29 18:13:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-29 18:13:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-11-29 18:13:13,207 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 22 [2020-11-29 18:13:13,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:13,207 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-11-29 18:13:13,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 18:13:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-11-29 18:13:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 18:13:13,210 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:13,210 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:13,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:13:13,423 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:13,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:13,424 INFO L82 PathProgramCache]: Analyzing trace with hash 701163562, now seen corresponding path program 1 times [2020-11-29 18:13:13,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:13,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273374223] [2020-11-29 18:13:13,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:13,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273374223] [2020-11-29 18:13:13,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172814112] [2020-11-29 18:13:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:13:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:13,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 56 conjunts are in the unsatisfiable core [2020-11-29 18:13:13,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:13:14,008 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-11-29 18:13:14,009 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-11-29 18:13:14,009 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:14,040 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:14,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,055 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2020-11-29 18:13:14,056 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:14,082 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:14,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,098 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2020-11-29 18:13:14,099 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:14,124 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:14,125 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:14,125 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:73, output treesize:52 [2020-11-29 18:13:14,267 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:14,267 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-11-29 18:13:14,268 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:14,507 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-11-29 18:13:14,508 INFO L625 ElimStorePlain]: treesize reduction 14, result has 94.3 percent of original size [2020-11-29 18:13:14,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,535 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:14,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,637 INFO L350 Elim1Store]: treesize reduction 15, result has 85.6 percent of original size [2020-11-29 18:13:14,637 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 3 case distinctions, treesize of input 79 treesize of output 112 [2020-11-29 18:13:14,638 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:14,827 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2020-11-29 18:13:14,828 INFO L625 ElimStorePlain]: treesize reduction 55, result has 76.3 percent of original size [2020-11-29 18:13:14,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:14,904 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:14,905 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 101 [2020-11-29 18:13:14,906 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:15,081 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-29 18:13:15,082 INFO L625 ElimStorePlain]: treesize reduction 54, result has 67.3 percent of original size [2020-11-29 18:13:15,083 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:15,083 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:235, output treesize:117 [2020-11-29 18:13:15,202 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:15,208 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:15,228 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:15,255 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:15,260 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:15,278 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:15,301 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:15,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:15,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:15,451 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:15,452 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-11-29 18:13:15,452 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:15,464 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-29 18:13:15,464 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:15,598 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:15,599 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-11-29 18:13:15,599 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:15,683 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:15,684 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-11-29 18:13:15,684 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:17,226 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-11-29 18:13:17,226 INFO L625 ElimStorePlain]: treesize reduction 16, result has 98.4 percent of original size [2020-11-29 18:13:17,230 INFO L441 ElimStorePlain]: Different costs {11=[|v_#memory_$Pointer$.base_31|, |v_#memory_$Pointer$.offset_29|], 24=[|v_#memory_$Pointer$.offset_31|, |v_#memory_$Pointer$.base_33|]} [2020-11-29 18:13:17,265 INFO L545 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:17,296 INFO L545 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:17,306 INFO L545 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:18,374 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 122 [2020-11-29 18:13:18,375 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:18,408 INFO L545 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:18,446 INFO L545 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:18,477 INFO L545 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:21,701 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification that was a NOOP. DAG size: 148 [2020-11-29 18:13:21,701 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:21,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:21,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:21,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:21,850 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:21,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:22,289 INFO L244 Elim1Store]: Index analysis took 515 ms [2020-11-29 18:13:22,740 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2020-11-29 18:13:22,741 INFO L350 Elim1Store]: treesize reduction 12, result has 93.3 percent of original size [2020-11-29 18:13:22,741 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 131 treesize of output 221 [2020-11-29 18:13:22,744 INFO L545 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:22,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:22,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:22,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:22,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:22,858 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:22,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:23,333 INFO L244 Elim1Store]: Index analysis took 540 ms [2020-11-29 18:13:23,821 INFO L350 Elim1Store]: treesize reduction 5, result has 93.1 percent of original size [2020-11-29 18:13:23,822 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 138 treesize of output 146 [2020-11-29 18:13:23,825 INFO L545 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:23,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:23,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:23,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:23,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:23,902 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:23,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:24,112 INFO L350 Elim1Store]: treesize reduction 5, result has 93.1 percent of original size [2020-11-29 18:13:24,113 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 143 [2020-11-29 18:13:24,124 INFO L545 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:25,377 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 149 DAG size of output: 119 [2020-11-29 18:13:25,377 INFO L625 ElimStorePlain]: treesize reduction 275, result has 72.1 percent of original size [2020-11-29 18:13:25,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,504 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:25,566 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:25,566 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 118 treesize of output 123 [2020-11-29 18:13:25,568 INFO L545 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:25,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,737 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:25,899 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-11-29 18:13:25,899 INFO L350 Elim1Store]: treesize reduction 45, result has 78.3 percent of original size [2020-11-29 18:13:25,900 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 127 treesize of output 210 [2020-11-29 18:13:25,906 INFO L545 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:25,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:25,961 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:25,999 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:25,999 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 116 treesize of output 121 [2020-11-29 18:13:26,001 INFO L545 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:26,531 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 85 [2020-11-29 18:13:26,531 INFO L625 ElimStorePlain]: treesize reduction 233, result has 64.9 percent of original size [2020-11-29 18:13:26,534 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-11-29 18:13:26,535 INFO L244 ElimStorePlain]: Needed 17 recursive calls to eliminate 7 variables, input treesize:1333, output treesize:442 [2020-11-29 18:13:26,756 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 18:13:27,038 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-11-29 18:13:27,140 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 16, 3, 1] term [2020-11-29 18:13:27,141 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:13:27,144 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-11-29 18:13:27,146 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-11-29 18:13:27,148 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-11-29 18:13:27,152 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-11-29 18:13:27,155 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:13:27,160 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-11-29 18:13:27,161 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-11-29 18:13:27,162 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:13:27,165 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:13:27,166 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-11-29 18:13:27,170 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:13:27,171 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-11-29 18:13:27,174 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:13:27,610 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 112 [2020-11-29 18:13:27,954 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:13:28,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:28,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:28,098 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:28,098 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 187 treesize of output 179 [2020-11-29 18:13:28,101 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:28,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:28,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:28,172 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:28,172 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 121 treesize of output 60 [2020-11-29 18:13:28,176 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:13:28,176 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:13:28,177 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:13:28,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:13:28,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:13:28,182 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:13:28,183 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:28,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:28,239 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:28,239 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 206 treesize of output 188 [2020-11-29 18:13:28,243 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:28,381 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2020-11-29 18:13:28,386 INFO L625 ElimStorePlain]: treesize reduction 92, result has 75.7 percent of original size [2020-11-29 18:13:28,389 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2020-11-29 18:13:28,389 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:668, output treesize:286 [2020-11-29 18:13:28,531 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-11-29 18:13:28,532 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:13:28,798 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:28,799 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 20 case distinctions, treesize of input 100 treesize of output 105 [2020-11-29 18:13:28,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:28,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:28,803 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:28,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:28,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:13:28,806 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:13:28,807 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:13:28,808 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:13:28,810 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:28,810 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:28,811 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:28,812 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:13:28,814 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:28,814 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:13:28,815 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:13:28,821 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:13:28,821 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:13:28,827 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:28,838 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:28,839 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:28,839 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:104, output treesize:4 [2020-11-29 18:13:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:28,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:13:28,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 17 [2020-11-29 18:13:28,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219118976] [2020-11-29 18:13:28,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-29 18:13:28,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:28,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-29 18:13:28,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-11-29 18:13:28,891 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 17 states. [2020-11-29 18:13:29,325 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-11-29 18:13:29,936 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 63 [2020-11-29 18:13:30,442 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-11-29 18:13:31,327 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 185 [2020-11-29 18:13:34,191 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 185 [2020-11-29 18:13:34,796 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 173 [2020-11-29 18:13:35,344 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 132 [2020-11-29 18:13:35,702 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-11-29 18:13:36,143 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-11-29 18:13:36,482 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-11-29 18:13:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:36,494 INFO L93 Difference]: Finished difference Result 123 states and 136 transitions. [2020-11-29 18:13:36,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-29 18:13:36,507 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 29 [2020-11-29 18:13:36,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:36,510 INFO L225 Difference]: With dead ends: 123 [2020-11-29 18:13:36,510 INFO L226 Difference]: Without dead ends: 120 [2020-11-29 18:13:36,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=148, Invalid=782, Unknown=0, NotChecked=0, Total=930 [2020-11-29 18:13:36,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-11-29 18:13:36,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 71. [2020-11-29 18:13:36,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 18:13:36,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2020-11-29 18:13:36,522 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 29 [2020-11-29 18:13:36,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:36,523 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2020-11-29 18:13:36,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-29 18:13:36,523 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2020-11-29 18:13:36,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 18:13:36,524 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:36,524 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:36,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-29 18:13:36,743 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:36,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:36,744 INFO L82 PathProgramCache]: Analyzing trace with hash 560614952, now seen corresponding path program 1 times [2020-11-29 18:13:36,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:36,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82474738] [2020-11-29 18:13:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:37,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82474738] [2020-11-29 18:13:37,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231849281] [2020-11-29 18:13:37,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:13:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:37,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 37 conjunts are in the unsatisfiable core [2020-11-29 18:13:37,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:13:37,605 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-11-29 18:13:37,605 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-11-29 18:13:37,605 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:37,621 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:37,622 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:37,622 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:23 [2020-11-29 18:13:37,665 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:37,665 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-11-29 18:13:37,666 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:13:37,668 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:37,712 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:37,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:37,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:37,730 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:37,764 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:37,764 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 41 [2020-11-29 18:13:37,765 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:37,841 INFO L625 ElimStorePlain]: treesize reduction 16, result has 88.4 percent of original size [2020-11-29 18:13:37,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:37,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:37,871 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:37,871 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 41 [2020-11-29 18:13:37,872 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:37,946 INFO L625 ElimStorePlain]: treesize reduction 16, result has 77.8 percent of original size [2020-11-29 18:13:37,947 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:37,948 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:194, output treesize:46 [2020-11-29 18:13:38,016 INFO L441 ElimStorePlain]: Different costs {0=[|v_#memory_int_43|], 4=[|v_#memory_$Pointer$.base_35|], 6=[|v_#memory_$Pointer$.offset_33|]} [2020-11-29 18:13:38,021 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-11-29 18:13:38,022 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:38,060 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:38,067 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:38,067 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 72 [2020-11-29 18:13:38,068 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:38,095 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:38,098 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2020-11-29 18:13:38,099 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:38,114 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:38,115 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:38,115 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:125, output treesize:63 [2020-11-29 18:13:38,259 INFO L441 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.base|], 1=[|#memory_$Pointer$.offset|]} [2020-11-29 18:13:38,263 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:38,263 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 35 [2020-11-29 18:13:38,264 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:38,277 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:38,286 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-11-29 18:13:38,292 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:38,300 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:38,301 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:38,302 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:74, output treesize:11 [2020-11-29 18:13:38,332 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-11-29 18:13:38,332 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:38,335 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:38,336 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:38,336 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2020-11-29 18:13:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:38,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:13:38,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 19 [2020-11-29 18:13:38,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573231092] [2020-11-29 18:13:38,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-29 18:13:38,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:13:38,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-29 18:13:38,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-11-29 18:13:38,372 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand 19 states. [2020-11-29 18:13:38,544 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-11-29 18:13:38,980 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-11-29 18:13:39,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:13:39,876 INFO L93 Difference]: Finished difference Result 122 states and 134 transitions. [2020-11-29 18:13:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 18:13:39,890 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 29 [2020-11-29 18:13:39,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:13:39,892 INFO L225 Difference]: With dead ends: 122 [2020-11-29 18:13:39,892 INFO L226 Difference]: Without dead ends: 108 [2020-11-29 18:13:39,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2020-11-29 18:13:39,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-29 18:13:39,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 80. [2020-11-29 18:13:39,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-29 18:13:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-11-29 18:13:39,919 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 29 [2020-11-29 18:13:39,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:13:39,919 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-11-29 18:13:39,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-29 18:13:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-11-29 18:13:39,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 18:13:39,925 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:13:39,926 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:13:40,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:13:40,140 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:13:40,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:13:40,141 INFO L82 PathProgramCache]: Analyzing trace with hash -2090626564, now seen corresponding path program 2 times [2020-11-29 18:13:40,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:13:40,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400862384] [2020-11-29 18:13:40,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:13:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:13:40,563 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:13:40,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400862384] [2020-11-29 18:13:40,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652706537] [2020-11-29 18:13:40,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:13:40,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 18:13:40,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:13:40,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 56 conjunts are in the unsatisfiable core [2020-11-29 18:13:40,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:13:40,747 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-11-29 18:13:40,748 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-11-29 18:13:40,748 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:40,779 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:40,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:40,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:40,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:40,799 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2020-11-29 18:13:40,800 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:40,829 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:40,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:40,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:40,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:40,840 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2020-11-29 18:13:40,840 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:40,868 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:40,869 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:40,869 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:73, output treesize:52 [2020-11-29 18:13:41,020 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:41,020 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-11-29 18:13:41,021 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:13:41,023 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:41,221 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-11-29 18:13:41,222 INFO L625 ElimStorePlain]: treesize reduction 14, result has 94.3 percent of original size [2020-11-29 18:13:41,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:41,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:41,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:41,240 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:13:41,291 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:41,292 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 101 [2020-11-29 18:13:41,293 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:41,453 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2020-11-29 18:13:41,453 INFO L625 ElimStorePlain]: treesize reduction 54, result has 75.6 percent of original size [2020-11-29 18:13:41,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:41,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:41,602 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-11-29 18:13:41,603 INFO L350 Elim1Store]: treesize reduction 15, result has 85.6 percent of original size [2020-11-29 18:13:41,603 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 3 case distinctions, treesize of input 79 treesize of output 112 [2020-11-29 18:13:41,604 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:41,766 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-11-29 18:13:41,767 INFO L625 ElimStorePlain]: treesize reduction 55, result has 66.9 percent of original size [2020-11-29 18:13:41,768 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:13:41,768 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:235, output treesize:117 [2020-11-29 18:13:41,914 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:41,924 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:41,956 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:42,002 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:42,011 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:42,050 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:42,098 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:42,109 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:13:42,140 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:13:42,387 INFO L244 Elim1Store]: Index analysis took 150 ms [2020-11-29 18:13:42,402 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:42,402 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-11-29 18:13:42,403 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:13:42,403 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:13:42,406 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:42,420 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-29 18:13:42,420 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:42,632 INFO L244 Elim1Store]: Index analysis took 173 ms [2020-11-29 18:13:42,647 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:42,647 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-11-29 18:13:42,648 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:13:42,650 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:13:42,652 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:42,812 INFO L244 Elim1Store]: Index analysis took 130 ms [2020-11-29 18:13:42,831 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:42,832 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-11-29 18:13:42,832 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:13:42,834 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:13:42,836 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:45,883 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 125 DAG size of output: 125 [2020-11-29 18:13:45,884 INFO L625 ElimStorePlain]: treesize reduction 26, result has 97.8 percent of original size [2020-11-29 18:13:45,916 INFO L441 ElimStorePlain]: Different costs {0=[|v_#memory_int_46|, |v_#memory_int_47|], 2=[|v_#memory_int_44|, |v_#memory_int_45|], 11=[|v_#memory_$Pointer$.offset_35|, |v_#memory_$Pointer$.base_37|], 24=[|v_#memory_$Pointer$.base_39|, |v_#memory_$Pointer$.offset_37|]} [2020-11-29 18:13:45,930 INFO L545 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:45,949 INFO L545 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:45,960 INFO L545 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:48,087 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 136 [2020-11-29 18:13:48,088 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:48,231 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 15 [2020-11-29 18:13:48,231 INFO L545 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:48,364 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 15 [2020-11-29 18:13:48,364 INFO L545 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:48,441 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 15 [2020-11-29 18:13:48,441 INFO L545 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:49,554 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 120 [2020-11-29 18:13:49,555 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:49,566 INFO L545 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:49,587 INFO L545 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:49,603 INFO L545 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:50,958 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 126 [2020-11-29 18:13:50,958 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:51,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:51,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:51,098 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 37 [2020-11-29 18:13:51,099 INFO L545 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:51,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:51,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:51,241 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 37 [2020-11-29 18:13:51,241 INFO L545 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:51,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:51,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:51,317 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 37 [2020-11-29 18:13:51,318 INFO L545 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2020-11-29 18:13:53,017 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-11-29 18:13:53,017 INFO L625 ElimStorePlain]: treesize reduction 12, result has 98.8 percent of original size [2020-11-29 18:13:53,026 INFO L545 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:53,035 INFO L545 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:53,068 INFO L545 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:55,267 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 143 [2020-11-29 18:13:55,268 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:55,277 INFO L545 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:55,473 INFO L545 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:55,489 INFO L545 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:13:58,779 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification that was a NOOP. DAG size: 169 [2020-11-29 18:13:58,780 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:13:59,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:59,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:13:59,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:00,292 INFO L244 Elim1Store]: Index analysis took 1438 ms [2020-11-29 18:14:00,641 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:14:00,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:01,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:01,654 INFO L350 Elim1Store]: treesize reduction 45, result has 74.7 percent of original size [2020-11-29 18:14:01,654 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 127 treesize of output 188 [2020-11-29 18:14:01,656 INFO L545 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2020-11-29 18:14:01,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:01,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:01,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:01,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:01,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:01,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:02,456 INFO L244 Elim1Store]: Index analysis took 717 ms [2020-11-29 18:14:02,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:02,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:02,652 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:14:02,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:03,048 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:14:03,048 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 118 treesize of output 101 [2020-11-29 18:14:03,051 INFO L545 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2020-11-29 18:14:03,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:03,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:03,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:03,171 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:14:03,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:03,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:03,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:03,342 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:14:03,342 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 107 [2020-11-29 18:14:03,343 INFO L545 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2020-11-29 18:14:05,055 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 160 DAG size of output: 137 [2020-11-29 18:14:05,056 INFO L625 ElimStorePlain]: treesize reduction 169, result has 82.1 percent of original size [2020-11-29 18:14:05,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:05,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:05,183 INFO L244 Elim1Store]: Index analysis took 107 ms [2020-11-29 18:14:05,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:05,307 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:14:05,588 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-11-29 18:14:05,588 INFO L350 Elim1Store]: treesize reduction 104, result has 69.7 percent of original size [2020-11-29 18:14:05,589 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 129 treesize of output 279 [2020-11-29 18:14:05,590 INFO L545 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2020-11-29 18:14:05,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:05,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:05,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:05,755 INFO L244 Elim1Store]: Index analysis took 121 ms [2020-11-29 18:14:06,059 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2020-11-29 18:14:06,060 INFO L350 Elim1Store]: treesize reduction 104, result has 67.7 percent of original size [2020-11-29 18:14:06,060 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 131 treesize of output 273 [2020-11-29 18:14:06,061 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:14:06,062 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-11-29 18:14:06,062 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:14:06,064 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-11-29 18:14:06,065 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:14:06,089 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-11-29 18:14:06,090 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:14:06,090 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:14:06,091 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:14:06,093 INFO L545 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:14:06,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:06,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:06,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:06,163 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 18:14:06,478 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-11-29 18:14:06,478 INFO L350 Elim1Store]: treesize reduction 104, result has 69.7 percent of original size [2020-11-29 18:14:06,479 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 277 [2020-11-29 18:14:06,480 INFO L545 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2020-11-29 18:14:07,221 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 114 [2020-11-29 18:14:07,222 INFO L625 ElimStorePlain]: treesize reduction 532, result has 50.5 percent of original size [2020-11-29 18:14:07,238 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 8 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-11-29 18:14:07,238 INFO L244 ElimStorePlain]: Needed 29 recursive calls to eliminate 11 variables, input treesize:1577, output treesize:608 [2020-11-29 18:14:07,662 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 99 [2020-11-29 18:14:07,666 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 18, 2, 1] term [2020-11-29 18:14:07,666 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:14:07,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-11-29 18:14:07,906 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-11-29 18:14:08,234 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-11-29 18:14:08,510 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-11-29 18:14:08,546 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:14:08,618 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:14:08,619 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 150 treesize of output 116 [2020-11-29 18:14:08,620 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,622 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,622 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,624 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,624 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,625 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,626 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,627 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,627 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,628 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:14:08,736 INFO L350 Elim1Store]: treesize reduction 48, result has 57.5 percent of original size [2020-11-29 18:14:08,736 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 193 treesize of output 146 [2020-11-29 18:14:08,739 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:14:08,740 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:14:08,741 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-11-29 18:14:08,742 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,743 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,743 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,744 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,745 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,746 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,747 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,748 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,749 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,756 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:14:08,757 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-11-29 18:14:08,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,759 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,759 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,762 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,763 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-11-29 18:14:08,764 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,765 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,767 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:14:08,768 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:14:08,769 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-11-29 18:14:08,769 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,771 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,771 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,774 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,775 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,776 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,777 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-11-29 18:14:08,778 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-11-29 18:14:08,779 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,780 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,781 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,782 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,783 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,784 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-11-29 18:14:08,785 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-29 18:14:08,786 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-29 18:14:08,788 INFO L545 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 18:14:08,852 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:14:08,853 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 150 treesize of output 116 [2020-11-29 18:14:08,855 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,856 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:14:08,856 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:14:08,857 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:14:08,858 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,859 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,860 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:14:08,862 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,862 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:14:08,863 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:14:08,864 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:14:08,865 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,865 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-29 18:14:08,866 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 18:14:08,868 INFO L545 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 18:14:09,243 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 102 [2020-11-29 18:14:09,244 INFO L625 ElimStorePlain]: treesize reduction 96, result has 72.7 percent of original size [2020-11-29 18:14:09,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:09,310 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:14:09,310 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 57 [2020-11-29 18:14:09,313 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:14:09,314 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:14:09,314 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:14:09,315 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:14:09,317 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 18:14:09,318 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:14:09,319 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:14:09,320 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:14:09,320 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:14:09,324 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:14:09,324 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:14:09,326 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:14:09,327 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-29 18:14:09,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:09,372 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:14:09,372 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 38 [2020-11-29 18:14:09,374 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-11-29 18:14:09,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 18:14:09,383 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 22 [2020-11-29 18:14:09,387 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-11-29 18:14:09,503 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-11-29 18:14:09,504 INFO L625 ElimStorePlain]: treesize reduction 12, result has 88.7 percent of original size [2020-11-29 18:14:09,506 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2020-11-29 18:14:09,506 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:566, output treesize:70 [2020-11-29 18:14:09,655 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-11-29 18:14:09,655 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:14:09,669 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:14:09,670 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2020-11-29 18:14:09,670 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:14:09,685 INFO L625 ElimStorePlain]: treesize reduction 4, result has 66.7 percent of original size [2020-11-29 18:14:09,686 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:14:09,686 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:3 [2020-11-29 18:14:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:14:09,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:14:09,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2020-11-29 18:14:09,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224779668] [2020-11-29 18:14:09,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-29 18:14:09,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:14:09,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-29 18:14:09,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2020-11-29 18:14:09,776 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 21 states. [2020-11-29 18:14:11,006 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-11-29 18:14:11,939 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 115 [2020-11-29 18:14:13,295 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 222 [2020-11-29 18:14:14,496 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 226 [2020-11-29 18:14:15,217 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 225 [2020-11-29 18:14:16,112 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 227 [2020-11-29 18:14:16,540 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 133 [2020-11-29 18:14:17,018 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2020-11-29 18:14:17,425 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2020-11-29 18:14:17,878 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 119 [2020-11-29 18:14:18,234 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2020-11-29 18:14:18,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:14:18,245 INFO L93 Difference]: Finished difference Result 144 states and 157 transitions. [2020-11-29 18:14:18,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-29 18:14:18,246 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 32 [2020-11-29 18:14:18,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:14:18,247 INFO L225 Difference]: With dead ends: 144 [2020-11-29 18:14:18,247 INFO L226 Difference]: Without dead ends: 130 [2020-11-29 18:14:18,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=183, Invalid=1299, Unknown=0, NotChecked=0, Total=1482 [2020-11-29 18:14:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-29 18:14:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 104. [2020-11-29 18:14:18,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-29 18:14:18,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2020-11-29 18:14:18,261 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 32 [2020-11-29 18:14:18,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:14:18,261 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2020-11-29 18:14:18,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-29 18:14:18,262 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2020-11-29 18:14:18,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 18:14:18,263 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:14:18,263 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:14:18,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-29 18:14:18,491 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:14:18,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:14:18,492 INFO L82 PathProgramCache]: Analyzing trace with hash -2032432830, now seen corresponding path program 1 times [2020-11-29 18:14:18,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:14:18,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181502429] [2020-11-29 18:14:18,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:14:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:14:18,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:14:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:14:18,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:14:18,627 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:14:18,627 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:14:18,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 18:14:18,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:14:18 BoogieIcfgContainer [2020-11-29 18:14:18,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:14:18,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:14:18,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:14:18,692 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:14:18,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:13:00" (3/4) ... [2020-11-29 18:14:18,695 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:14:18,755 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1a033831-10a8-4c44-b334-292ecfd32b66/bin/uautomizer/witness.graphml [2020-11-29 18:14:18,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:14:18,756 INFO L168 Benchmark]: Toolchain (without parser) took 79798.23 ms. Allocated memory was 113.2 MB in the beginning and 243.3 MB in the end (delta: 130.0 MB). Free memory was 85.8 MB in the beginning and 109.6 MB in the end (delta: -23.8 MB). Peak memory consumption was 105.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:14:18,756 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 113.2 MB. Free memory is still 70.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:14:18,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.89 ms. Allocated memory was 113.2 MB in the beginning and 167.8 MB in the end (delta: 54.5 MB). Free memory was 85.5 MB in the beginning and 131.0 MB in the end (delta: -45.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:14:18,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.47 ms. Allocated memory is still 167.8 MB. Free memory was 131.0 MB in the beginning and 128.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:14:18,757 INFO L168 Benchmark]: Boogie Preprocessor took 82.49 ms. Allocated memory is still 167.8 MB. Free memory was 128.9 MB in the beginning and 126.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:14:18,757 INFO L168 Benchmark]: RCFGBuilder took 816.18 ms. Allocated memory is still 167.8 MB. Free memory was 126.8 MB in the beginning and 95.9 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:14:18,758 INFO L168 Benchmark]: TraceAbstraction took 78053.27 ms. Allocated memory was 167.8 MB in the beginning and 243.3 MB in the end (delta: 75.5 MB). Free memory was 95.9 MB in the beginning and 112.8 MB in the end (delta: -16.9 MB). Peak memory consumption was 60.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:14:18,758 INFO L168 Benchmark]: Witness Printer took 63.02 ms. Allocated memory is still 243.3 MB. Free memory was 112.8 MB in the beginning and 109.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:14:18,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 113.2 MB. Free memory is still 70.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 655.89 ms. Allocated memory was 113.2 MB in the beginning and 167.8 MB in the end (delta: 54.5 MB). Free memory was 85.5 MB in the beginning and 131.0 MB in the end (delta: -45.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 120.47 ms. Allocated memory is still 167.8 MB. Free memory was 131.0 MB in the beginning and 128.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.49 ms. Allocated memory is still 167.8 MB. Free memory was 128.9 MB in the beginning and 126.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 816.18 ms. Allocated memory is still 167.8 MB. Free memory was 126.8 MB in the beginning and 95.9 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 78053.27 ms. Allocated memory was 167.8 MB in the beginning and 243.3 MB in the end (delta: 75.5 MB). Free memory was 95.9 MB in the beginning and 112.8 MB in the end (delta: -16.9 MB). Peak memory consumption was 60.3 MB. Max. memory is 16.1 GB. * Witness Printer took 63.02 ms. Allocated memory is still 243.3 MB. Free memory was 112.8 MB in the beginning and 109.6 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.traceabstraction: - CounterExampleResult [Line: 985]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L998] struct TSLL* null = malloc(sizeof(struct TSLL)); [L999] null->next = ((void*)0) [L1000] null->prev = ((void*)0) [L1001] null->colour = BLACK [L1003] struct TSLL* list = malloc(sizeof(struct TSLL)); [L1004] list->next = null [L1005] list->prev = null [L1006] list->colour = BLACK [L1008] struct TSLL* end = list; [L1011] COND TRUE __VERIFIER_nondet_int() [L1014] end->next = malloc(sizeof(struct TSLL)) [L1015] EXPR end->next [L1015] end->next->prev = end [L1016] EXPR end->next [L1016] end = end->next [L1017] end->next = null [L1019] COND FALSE !(__VERIFIER_nondet_int()) [L1025] end->colour = RED [L1026] end->next = malloc(sizeof(struct TSLL)) [L1027] EXPR end->next [L1027] end->next->prev = end [L1028] EXPR end->next [L1028] end = end->next [L1029] end->next = null [L1030] end->colour = BLACK [L1032] EXPR end->colour [L1032] COND FALSE !(!(BLACK == end->colour)) [L1033] EXPR end->next [L1033] COND FALSE !(!(null == end->next)) [L1034] COND FALSE !(!(null != end)) [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1037] end = null [L1038] end = list [L1041] COND FALSE !(!(null != end)) [L1042] EXPR end->colour [L1042] COND FALSE !(!(BLACK == end->colour)) [L1043] COND TRUE null != end [L1045] EXPR end->colour [L1045] COND FALSE !(RED == end->colour) [L1052] EXPR end->next [L1052] end = end->next [L1043] COND TRUE null != end [L1045] EXPR end->colour [L1045] COND TRUE RED == end->colour [L1047] EXPR end->next [L1047] end = end->next [L1048] COND FALSE !(!(null != end)) [L1049] EXPR end->colour [L1049] COND TRUE !(BLACK != end->colour) [L985] COND FALSE !(0) [L985] __assert_fail ("0", "dll-rb-sentinel-1.c", 14, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 77.9s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 25.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 422 SDtfs, 856 SDslu, 1687 SDs, 0 SdLazy, 1766 SolverSat, 195 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 258 GetRequests, 119 SyntacticMatches, 5 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 16.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 162 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 49.2s InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 319 ConstructedInterpolants, 44 QuantifiedInterpolants, 671751 SizeOfPredicates, 74 NumberOfNonLiveVariables, 697 ConjunctsInSsa, 192 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 7/42 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 incorrect! Received shutdown request...