./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test24-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test24-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/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 dac6403f37599f80fd46825f02fd0972bc86095b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:17:07,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:17:07,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:17:07,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:17:07,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:17:07,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:17:07,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:17:07,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:17:07,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:17:07,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:17:07,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:17:07,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:17:07,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:17:07,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:17:07,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:17:07,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:17:07,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:17:07,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:17:07,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:17:07,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:17:07,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:17:07,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:17:07,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:17:07,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:17:07,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:17:07,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:17:07,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:17:07,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:17:07,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:17:07,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:17:07,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:17:07,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:17:07,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:17:07,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:17:07,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:17:07,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:17:07,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:17:07,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:17:07,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:17:07,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:17:07,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:17:07,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:17:07,500 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:17:07,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:17:07,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:17:07,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:17:07,503 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:17:07,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:17:07,504 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:17:07,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:17:07,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:17:07,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:17:07,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:17:07,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:17:07,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:17:07,506 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:17:07,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:17:07,506 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:17:07,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:17:07,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:17:07,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:17:07,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:17:07,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:17:07,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:17:07,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:17:07,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:17:07,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:17:07,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:17:07,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:17:07,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:17:07,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:17:07,509 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_9282b463-f1f4-419d-9b69-f08b9e8644bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dac6403f37599f80fd46825f02fd0972bc86095b [2020-12-01 15:17:07,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:17:07,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:17:07,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:17:07,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:17:07,829 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:17:07,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test24-1.c [2020-12-01 15:17:07,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/data/159a31b46/5a1955f1f1c246f487df54ba7fbf0eb8/FLAGa2c0ef683 [2020-12-01 15:17:08,472 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:17:08,472 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/sv-benchmarks/c/ldv-regression/test24-1.c [2020-12-01 15:17:08,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/data/159a31b46/5a1955f1f1c246f487df54ba7fbf0eb8/FLAGa2c0ef683 [2020-12-01 15:17:08,829 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/data/159a31b46/5a1955f1f1c246f487df54ba7fbf0eb8 [2020-12-01 15:17:08,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:17:08,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:17:08,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:17:08,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:17:08,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:17:08,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:17:08" (1/1) ... [2020-12-01 15:17:08,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87f1268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:08, skipping insertion in model container [2020-12-01 15:17:08,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:17:08" (1/1) ... [2020-12-01 15:17:08,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:17:08,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:17:09,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:17:09,070 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:17:09,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:17:09,104 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:17:09,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09 WrapperNode [2020-12-01 15:17:09,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:17:09,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:17:09,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:17:09,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:17:09,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... [2020-12-01 15:17:09,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... [2020-12-01 15:17:09,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:17:09,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:17:09,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:17:09,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:17:09,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... [2020-12-01 15:17:09,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... [2020-12-01 15:17:09,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... [2020-12-01 15:17:09,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... [2020-12-01 15:17:09,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... [2020-12-01 15:17:09,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... [2020-12-01 15:17:09,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... [2020-12-01 15:17:09,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:17:09,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:17:09,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:17:09,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:17:09,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/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 [2020-12-01 15:17:09,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:17:09,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:17:09,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:17:09,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:17:09,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:17:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:17:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:17:09,473 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:17:09,473 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:17:09,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:17:09 BoogieIcfgContainer [2020-12-01 15:17:09,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:17:09,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:17:09,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:17:09,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:17:09,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:17:08" (1/3) ... [2020-12-01 15:17:09,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8e1f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:17:09, skipping insertion in model container [2020-12-01 15:17:09,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:17:09" (2/3) ... [2020-12-01 15:17:09,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8e1f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:17:09, skipping insertion in model container [2020-12-01 15:17:09,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:17:09" (3/3) ... [2020-12-01 15:17:09,484 INFO L111 eAbstractionObserver]: Analyzing ICFG test24-1.c [2020-12-01 15:17:09,498 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:17:09,501 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:17:09,514 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:17:09,551 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:17:09,551 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:17:09,552 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:17:09,552 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:17:09,552 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:17:09,552 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:17:09,552 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:17:09,552 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:17:09,566 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-01 15:17:09,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 15:17:09,589 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:09,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:17:09,590 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:09,599 INFO L82 PathProgramCache]: Analyzing trace with hash 126985497, now seen corresponding path program 1 times [2020-12-01 15:17:09,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:09,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574896651] [2020-12-01 15:17:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:09,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574896651] [2020-12-01 15:17:09,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:17:09,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:17:09,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061081296] [2020-12-01 15:17:09,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:17:09,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:09,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:17:09,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:17:09,868 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-12-01 15:17:09,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:09,886 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2020-12-01 15:17:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:17:09,888 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-01 15:17:09,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:09,910 INFO L225 Difference]: With dead ends: 24 [2020-12-01 15:17:09,911 INFO L226 Difference]: Without dead ends: 10 [2020-12-01 15:17:09,913 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 [2020-12-01 15:17:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-01 15:17:09,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-01 15:17:09,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:17:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-01 15:17:09,957 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2020-12-01 15:17:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:09,958 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-01 15:17:09,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:17:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-01 15:17:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:17:09,959 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:09,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:17:09,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:17:09,961 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:09,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:09,965 INFO L82 PathProgramCache]: Analyzing trace with hash -564424753, now seen corresponding path program 1 times [2020-12-01 15:17:09,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:09,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278618930] [2020-12-01 15:17:09,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:10,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278618930] [2020-12-01 15:17:10,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:17:10,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:17:10,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037038108] [2020-12-01 15:17:10,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:17:10,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:10,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:17:10,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:17:10,252 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 5 states. [2020-12-01 15:17:10,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:10,309 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-12-01 15:17:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:17:10,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-01 15:17:10,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:10,311 INFO L225 Difference]: With dead ends: 17 [2020-12-01 15:17:10,311 INFO L226 Difference]: Without dead ends: 12 [2020-12-01 15:17:10,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:17:10,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-01 15:17:10,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-01 15:17:10,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-01 15:17:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-12-01 15:17:10,322 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2020-12-01 15:17:10,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:10,323 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-12-01 15:17:10,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:17:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-12-01 15:17:10,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:17:10,325 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:10,325 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:17:10,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:17:10,326 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:10,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:10,328 INFO L82 PathProgramCache]: Analyzing trace with hash 263489748, now seen corresponding path program 1 times [2020-12-01 15:17:10,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:10,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424453680] [2020-12-01 15:17:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:10,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424453680] [2020-12-01 15:17:10,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200982613] [2020-12-01 15:17:10,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/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 [2020-12-01 15:17:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:10,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:17:10,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:17:10,939 INFO L348 Elim1Store]: treesize reduction 31, result has 8.8 percent of original size [2020-12-01 15:17:10,940 INFO L382 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 43 treesize of output 12 [2020-12-01 15:17:10,946 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:17:10,948 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:17:10,949 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:17:10,949 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:43, output treesize:5 [2020-12-01 15:17:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:10,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:17:10,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-12-01 15:17:10,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508355834] [2020-12-01 15:17:10,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 15:17:10,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:10,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:17:10,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:17:10,980 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 10 states. [2020-12-01 15:17:11,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:11,195 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-12-01 15:17:11,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:17:11,197 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-12-01 15:17:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:11,199 INFO L225 Difference]: With dead ends: 21 [2020-12-01 15:17:11,199 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 15:17:11,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-12-01 15:17:11,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 15:17:11,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 15:17:11,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:17:11,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-01 15:17:11,206 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2020-12-01 15:17:11,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:11,207 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-01 15:17:11,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 15:17:11,207 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-01 15:17:11,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 15:17:11,208 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:11,208 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:17:11,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-01 15:17:11,421 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:11,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:11,421 INFO L82 PathProgramCache]: Analyzing trace with hash -919715042, now seen corresponding path program 2 times [2020-12-01 15:17:11,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:11,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499838059] [2020-12-01 15:17:11,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:11,582 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:11,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499838059] [2020-12-01 15:17:11,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908727963] [2020-12-01 15:17:11,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/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 [2020-12-01 15:17:11,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:17:11,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:17:11,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:17:11,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:17:11,690 INFO L382 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 36 treesize of output 32 [2020-12-01 15:17:11,691 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:17:11,700 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:17:11,703 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-01 15:17:11,704 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:63, output treesize:53 [2020-12-01 15:17:20,004 INFO L348 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2020-12-01 15:17:20,004 INFO L382 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 60 treesize of output 17 [2020-12-01 15:17:20,007 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:17:20,013 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:17:20,015 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:17:20,015 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:60, output treesize:5 [2020-12-01 15:17:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:20,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:17:20,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2020-12-01 15:17:20,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299422040] [2020-12-01 15:17:20,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-01 15:17:20,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:20,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-01 15:17:20,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=123, Unknown=4, NotChecked=0, Total=182 [2020-12-01 15:17:20,038 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 14 states. [2020-12-01 15:17:20,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:20,641 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2020-12-01 15:17:20,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-01 15:17:20,642 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-12-01 15:17:20,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:20,643 INFO L225 Difference]: With dead ends: 29 [2020-12-01 15:17:20,643 INFO L226 Difference]: Without dead ends: 24 [2020-12-01 15:17:20,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=240, Invalid=512, Unknown=4, NotChecked=0, Total=756 [2020-12-01 15:17:20,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-01 15:17:20,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-01 15:17:20,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-01 15:17:20,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-12-01 15:17:20,649 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 15 [2020-12-01 15:17:20,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:20,649 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-12-01 15:17:20,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-01 15:17:20,649 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-12-01 15:17:20,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 15:17:20,650 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:17:20,650 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:17:20,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:17:20,851 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:17:20,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:17:20,852 INFO L82 PathProgramCache]: Analyzing trace with hash 607492274, now seen corresponding path program 3 times [2020-12-01 15:17:20,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:17:20,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479543376] [2020-12-01 15:17:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:17:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:17:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:17:21,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479543376] [2020-12-01 15:17:21,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608818962] [2020-12-01 15:17:21,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/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 [2020-12-01 15:17:21,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-01 15:17:21,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:17:21,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-01 15:17:21,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:17:21,280 INFO L382 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 27 treesize of output 23 [2020-12-01 15:17:21,282 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:17:21,291 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:17:21,293 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:17:21,293 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2020-12-01 15:17:21,499 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-01 15:17:21,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:17:21,710 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:17:21,713 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:17:21,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 15:17:21,790 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-12-01 15:17:21,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:17:21,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2020-12-01 15:17:21,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843832203] [2020-12-01 15:17:21,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-01 15:17:21,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:21,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-01 15:17:21,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2020-12-01 15:17:21,798 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 20 states. [2020-12-01 15:17:26,007 WARN L197 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-12-01 15:17:27,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:27,793 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-12-01 15:17:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-01 15:17:27,796 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2020-12-01 15:17:27,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:27,797 INFO L225 Difference]: With dead ends: 29 [2020-12-01 15:17:27,797 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:17:27,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=418, Invalid=1222, Unknown=0, NotChecked=0, Total=1640 [2020-12-01 15:17:27,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:17:27,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:17:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:17:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:17:27,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2020-12-01 15:17:27,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:27,799 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:17:27,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-01 15:17:27,800 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:17:27,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:17:28,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:17:28,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:17:28,165 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:17:28,165 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-01 15:17:28,165 INFO L262 CegarLoopResult]: For program point L23(lines 23 34) no Hoare annotation was computed. [2020-12-01 15:17:28,165 INFO L262 CegarLoopResult]: For program point L23-2(lines 23 34) no Hoare annotation was computed. [2020-12-01 15:17:28,165 INFO L258 CegarLoopResult]: At program point L13(lines 11 14) the Hoare annotation is: (and (= |ULTIMATE.start_check_#res| 1) (= |ULTIMATE.start_main_~#ad1~0.offset| 0) (exists ((aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 Int) (aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 Int)) (let ((.cse0 (select |#memory_int| |ULTIMATE.start_main_~#ad1~0.base|))) (let ((.cse1 (select .cse0 (div (+ (* |ULTIMATE.start_main_~#ad1~0.offset| (- 1)) (* (div (+ (* |ULTIMATE.start_main_~#ad1~0.offset| 8) (* (div (* aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 42) 6) (- 8))) (- 8)) (- 8))) 7))) (.cse2 (* 8 aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110)) (.cse3 (* 8 aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118))) (and (= aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 (select .cse0 (+ |ULTIMATE.start_main_~#ad1~0.offset| (* aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 8)))) (<= .cse1 ULTIMATE.start_main_~i~0) (< ULTIMATE.start_main_~i~0 (+ .cse1 1)) (< (+ .cse2 .cse3) 8) (< 0 (+ .cse2 .cse3 1)))))) (= ULTIMATE.start_main_~pa~0.base |ULTIMATE.start_main_~#ad1~0.base|) (< ULTIMATE.start_main_~i~0 (+ (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset) 1)) (= (mod (+ |ULTIMATE.start_main_~#ad1~0.offset| (* ULTIMATE.start_main_~pa~0.offset 7)) (- 8)) 0) (let ((.cse4 (div (+ |ULTIMATE.start_main_~#ad1~0.offset| (* ULTIMATE.start_main_~pa~0.offset (- 1))) (- 8)))) (= .cse4 (select (select |#memory_int| |ULTIMATE.start_main_~#ad1~0.base|) (+ |ULTIMATE.start_main_~#ad1~0.offset| (* .cse4 8)))))) [2020-12-01 15:17:28,165 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:17:28,165 INFO L258 CegarLoopResult]: At program point L32(lines 17 40) the Hoare annotation is: false [2020-12-01 15:17:28,165 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:17:28,166 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:17:28,166 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:17:28,166 INFO L262 CegarLoopResult]: For program point L28-1(lines 28 30) no Hoare annotation was computed. [2020-12-01 15:17:28,166 INFO L258 CegarLoopResult]: At program point L28-3(lines 28 30) the Hoare annotation is: (and (= |ULTIMATE.start_main_~#ad1~0.offset| 0) (= ULTIMATE.start_main_~pa~0.base |ULTIMATE.start_main_~#ad1~0.base|) (< ULTIMATE.start_main_~i~0 (+ (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset) 1)) (= (mod (+ |ULTIMATE.start_main_~#ad1~0.offset| (* ULTIMATE.start_main_~pa~0.offset 7)) (- 8)) 0) (let ((.cse0 (div (+ |ULTIMATE.start_main_~#ad1~0.offset| (* ULTIMATE.start_main_~pa~0.offset (- 1))) (- 8)))) (= .cse0 (select (select |#memory_int| |ULTIMATE.start_main_~#ad1~0.base|) (+ |ULTIMATE.start_main_~#ad1~0.offset| (* .cse0 8)))))) [2020-12-01 15:17:28,166 INFO L262 CegarLoopResult]: For program point L28-4(lines 28 30) no Hoare annotation was computed. [2020-12-01 15:17:28,166 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:17:28,166 INFO L265 CegarLoopResult]: At program point L39(lines 16 40) the Hoare annotation is: true [2020-12-01 15:17:28,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,196 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:17:28 BoogieIcfgContainer [2020-12-01 15:17:28,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:17:28,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:17:28,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:17:28,206 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:17:28,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:17:09" (3/4) ... [2020-12-01 15:17:28,210 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:17:28,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-01 15:17:28,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 15:17:28,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:17:28,222 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:17:28,253 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && ad1 == 0) && (\exists aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 : int, aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 : int :: (((aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 == unknown-#memory_int-unknown[ad1][ad1 + aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 * 8] && unknown-#memory_int-unknown[ad1][(ad1 * -1 + (ad1 * 8 + aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 * 42 / 6 * -8) / -8 * -8) / 7] <= i) && i < unknown-#memory_int-unknown[ad1][(ad1 * -1 + (ad1 * 8 + aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 * 42 / 6 * -8) / -8 * -8) / 7] + 1) && 8 * aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 + 8 * aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 < 8) && 0 < 8 * aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 + 8 * aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 + 1)) && pa == ad1) && i < unknown-#memory_int-unknown[pa][pa] + 1) && (ad1 + pa * 7) % -8 == 0) && (ad1 + pa * -1) / -8 == unknown-#memory_int-unknown[ad1][ad1 + (ad1 + pa * -1) / -8 * 8] [2020-12-01 15:17:28,284 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9282b463-f1f4-419d-9b69-f08b9e8644bf/bin/uautomizer/witness.graphml [2020-12-01 15:17:28,284 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:17:28,286 INFO L168 Benchmark]: Toolchain (without parser) took 19451.95 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 57.5 MB in the beginning and 37.4 MB in the end (delta: 20.1 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:28,286 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:17:28,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.15 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 57.3 MB in the beginning and 88.3 MB in the end (delta: -31.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:28,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.01 ms. Allocated memory is still 111.1 MB. Free memory was 87.7 MB in the beginning and 86.8 MB in the end (delta: 932.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:28,287 INFO L168 Benchmark]: Boogie Preprocessor took 24.99 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 85.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:17:28,288 INFO L168 Benchmark]: RCFGBuilder took 309.84 ms. Allocated memory is still 111.1 MB. Free memory was 85.3 MB in the beginning and 72.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:28,288 INFO L168 Benchmark]: TraceAbstraction took 18728.41 ms. Allocated memory is still 111.1 MB. Free memory was 72.1 MB in the beginning and 40.5 MB in the end (delta: 31.6 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:28,289 INFO L168 Benchmark]: Witness Printer took 78.58 ms. Allocated memory is still 111.1 MB. Free memory was 40.5 MB in the beginning and 37.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:28,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.15 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 57.3 MB in the beginning and 88.3 MB in the end (delta: -31.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.01 ms. Allocated memory is still 111.1 MB. Free memory was 87.7 MB in the beginning and 86.8 MB in the end (delta: 932.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.99 ms. Allocated memory is still 111.1 MB. Free memory was 86.8 MB in the beginning and 85.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 309.84 ms. Allocated memory is still 111.1 MB. Free memory was 85.3 MB in the beginning and 72.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18728.41 ms. Allocated memory is still 111.1 MB. Free memory was 72.1 MB in the beginning and 40.5 MB in the end (delta: 31.6 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. * Witness Printer took 78.58 ms. Allocated memory is still 111.1 MB. Free memory was 40.5 MB in the beginning and 37.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant [2020-12-01 15:17:28,305 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110,QUANTIFIED] [2020-12-01 15:17:28,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118,QUANTIFIED] [2020-12-01 15:17:28,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((\result == 1 && ad1 == 0) && (\exists aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 : int, aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 : int :: (((aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 == unknown-#memory_int-unknown[ad1][ad1 + aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 * 8] && unknown-#memory_int-unknown[ad1][(ad1 * -1 + (ad1 * 8 + aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 * 42 / 6 * -8) / -8 * -8) / 7] <= i) && i < unknown-#memory_int-unknown[ad1][(ad1 * -1 + (ad1 * 8 + aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 * 42 / 6 * -8) / -8 * -8) / 7] + 1) && 8 * aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 + 8 * aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 < 8) && 0 < 8 * aux_div_aux_div_aux_div_aux_mod_aux_mod_aux_mod_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_170_161_91_267_110 + 8 * aux_div_aux_div_aux_div_ULTIMATE.start_main_~pa~0.offset_91_112_118 + 1)) && pa == ad1) && i < unknown-#memory_int-unknown[pa][pa] + 1) && (ad1 + pa * 7) % -8 == 0) && (ad1 + pa * -1) / -8 == unknown-#memory_int-unknown[ad1][ad1 + (ad1 + pa * -1) / -8 * 8] - InvariantResult [Line: 28]: Loop Invariant [2020-12-01 15:17:28,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:17:28,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((ad1 == 0 && pa == ad1) && i < unknown-#memory_int-unknown[pa][pa] + 1) && (ad1 + pa * 7) % -8 == 0) && (ad1 + pa * -1) / -8 == unknown-#memory_int-unknown[ad1][ad1 + (ad1 + pa * -1) / -8 * 8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.4s, OverallIterations: 5, TraceHistogramMax: 8, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35 SDtfs, 83 SDslu, 54 SDs, 0 SdLazy, 206 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 15.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 189 HoareAnnotationTreeSize, 4 FomulaSimplifications, 168 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 505 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 115 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 107 ConstructedInterpolants, 12 QuantifiedInterpolants, 29667 SizeOfPredicates, 29 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 49/140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...