./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c --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_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ec0e5925e997c01ed0feba8438589759f7e6730 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:42:14,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:42:14,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:42:14,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:42:14,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:42:14,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:42:14,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:42:14,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:42:14,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:42:14,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:42:14,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:42:14,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:42:14,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:42:14,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:42:14,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:42:14,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:42:14,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:42:14,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:42:14,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:42:14,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:42:14,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:42:14,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:42:14,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:42:14,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:42:14,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:42:14,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:42:14,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:42:14,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:42:14,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:42:14,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:42:14,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:42:14,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:42:14,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:42:14,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:42:14,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:42:14,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:42:14,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:42:14,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:42:14,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:42:14,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:42:14,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:42:14,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:42:14,831 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:42:14,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:42:14,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:42:14,837 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:42:14,837 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:42:14,837 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:42:14,837 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:42:14,838 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:42:14,838 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:42:14,838 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:42:14,839 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:42:14,840 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:42:14,840 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:42:14,840 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:42:14,840 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:42:14,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:42:14,842 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:42:14,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:42:14,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:42:14,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:42:14,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:42:14,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:42:14,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:42:14,843 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:42:14,843 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:42:14,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:42:14,844 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:42:14,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:42:14,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:42:14,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:42:14,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:42:14,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:42:14,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:42:14,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:42:14,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:42:14,848 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:42:14,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:42:14,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:42:14,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:42:14,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:42:14,849 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec0e5925e997c01ed0feba8438589759f7e6730 [2020-11-28 07:42:15,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:42:15,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:42:15,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:42:15,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:42:15,156 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:42:15,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c [2020-11-28 07:42:15,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/data/b90c3c71d/285565d15add4153aa0e89bf048cb986/FLAGd0665a7ca [2020-11-28 07:42:15,730 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:42:15,731 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c [2020-11-28 07:42:15,738 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/data/b90c3c71d/285565d15add4153aa0e89bf048cb986/FLAGd0665a7ca [2020-11-28 07:42:16,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/data/b90c3c71d/285565d15add4153aa0e89bf048cb986 [2020-11-28 07:42:16,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:42:16,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:42:16,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:42:16,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:42:16,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:42:16,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698f77bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16, skipping insertion in model container [2020-11-28 07:42:16,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:42:16,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:42:16,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:42:16,341 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:42:16,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:42:16,403 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:42:16,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16 WrapperNode [2020-11-28 07:42:16,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:42:16,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:42:16,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:42:16,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:42:16,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:42:16,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:42:16,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:42:16,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:42:16,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... [2020-11-28 07:42:16,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:42:16,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:42:16,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:42:16,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:42:16,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:42:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:42:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:42:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:42:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:42:17,163 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:42:17,163 INFO L298 CfgBuilder]: Removed 35 assume(true) statements. [2020-11-28 07:42:17,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:42:17 BoogieIcfgContainer [2020-11-28 07:42:17,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:42:17,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:42:17,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:42:17,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:42:17,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:42:16" (1/3) ... [2020-11-28 07:42:17,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0c73e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:42:17, skipping insertion in model container [2020-11-28 07:42:17,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:42:16" (2/3) ... [2020-11-28 07:42:17,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0c73e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:42:17, skipping insertion in model container [2020-11-28 07:42:17,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:42:17" (3/3) ... [2020-11-28 07:42:17,175 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound1.c [2020-11-28 07:42:17,186 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:42:17,190 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-28 07:42:17,202 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-28 07:42:17,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:42:17,228 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:42:17,228 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:42:17,228 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:42:17,228 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:42:17,229 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:42:17,229 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:42:17,229 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:42:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-28 07:42:17,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:42:17,248 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:17,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:42:17,250 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:17,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:17,256 INFO L82 PathProgramCache]: Analyzing trace with hash 184804590, now seen corresponding path program 1 times [2020-11-28 07:42:17,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:17,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654660764] [2020-11-28 07:42:17,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:17,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:17,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654660764] [2020-11-28 07:42:17,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:42:17,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:42:17,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183562983] [2020-11-28 07:42:17,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:42:17,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:17,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:42:17,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:42:17,420 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-28 07:42:17,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:17,439 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2020-11-28 07:42:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:42:17,440 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-11-28 07:42:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:17,449 INFO L225 Difference]: With dead ends: 59 [2020-11-28 07:42:17,449 INFO L226 Difference]: Without dead ends: 28 [2020-11-28 07:42:17,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:42:17,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-28 07:42:17,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-28 07:42:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-28 07:42:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-11-28 07:42:17,487 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2020-11-28 07:42:17,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:17,487 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-11-28 07:42:17,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:42:17,488 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-11-28 07:42:17,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:42:17,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:17,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:42:17,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:42:17,489 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:17,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:17,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1325115871, now seen corresponding path program 1 times [2020-11-28 07:42:17,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:17,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588990501] [2020-11-28 07:42:17,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:17,510 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:17,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605811760] [2020-11-28 07:42:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:17,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 07:42:17,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:17,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:17,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:17,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588990501] [2020-11-28 07:42:17,639 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:17,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605811760] [2020-11-28 07:42:17,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:42:17,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:42:17,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881127019] [2020-11-28 07:42:17,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:42:17,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:17,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:42:17,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:42:17,643 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 3 states. [2020-11-28 07:42:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:17,685 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2020-11-28 07:42:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:42:17,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 07:42:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:17,687 INFO L225 Difference]: With dead ends: 55 [2020-11-28 07:42:17,687 INFO L226 Difference]: Without dead ends: 51 [2020-11-28 07:42:17,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:42:17,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-28 07:42:17,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 30. [2020-11-28 07:42:17,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 07:42:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-11-28 07:42:17,695 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 6 [2020-11-28 07:42:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:17,696 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-11-28 07:42:17,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:42:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-11-28 07:42:17,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:42:17,696 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:17,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:42:17,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 07:42:17,913 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:17,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:17,913 INFO L82 PathProgramCache]: Analyzing trace with hash 2108927896, now seen corresponding path program 1 times [2020-11-28 07:42:17,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:17,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239747202] [2020-11-28 07:42:17,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:17,932 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:17,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717473192] [2020-11-28 07:42:17,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/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 [2020-11-28 07:42:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:17,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 07:42:18,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:18,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:18,169 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:42:18,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:18,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239747202] [2020-11-28 07:42:18,220 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:18,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717473192] [2020-11-28 07:42:18,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:42:18,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 07:42:18,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577398351] [2020-11-28 07:42:18,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 07:42:18,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:18,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 07:42:18,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:42:18,223 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 7 states. [2020-11-28 07:42:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:18,471 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2020-11-28 07:42:18,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:42:18,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-11-28 07:42:18,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:18,473 INFO L225 Difference]: With dead ends: 51 [2020-11-28 07:42:18,473 INFO L226 Difference]: Without dead ends: 49 [2020-11-28 07:42:18,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:42:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-28 07:42:18,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2020-11-28 07:42:18,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-28 07:42:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-11-28 07:42:18,492 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 8 [2020-11-28 07:42:18,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:18,493 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-11-28 07:42:18,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 07:42:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-11-28 07:42:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:42:18,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:18,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:42:18,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:18,701 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:18,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:18,701 INFO L82 PathProgramCache]: Analyzing trace with hash -544667557, now seen corresponding path program 1 times [2020-11-28 07:42:18,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:18,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026378081] [2020-11-28 07:42:18,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:18,719 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:18,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104914069] [2020-11-28 07:42:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/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 [2020-11-28 07:42:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:18,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 07:42:18,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:18,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:18,958 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:42:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:19,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026378081] [2020-11-28 07:42:19,064 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:19,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104914069] [2020-11-28 07:42:19,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:42:19,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 07:42:19,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619538848] [2020-11-28 07:42:19,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 07:42:19,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:19,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 07:42:19,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:42:19,067 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-11-28 07:42:19,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:19,256 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-11-28 07:42:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:42:19,260 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-11-28 07:42:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:19,261 INFO L225 Difference]: With dead ends: 49 [2020-11-28 07:42:19,261 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 07:42:19,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:42:19,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 07:42:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2020-11-28 07:42:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-28 07:42:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2020-11-28 07:42:19,275 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 10 [2020-11-28 07:42:19,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:19,275 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2020-11-28 07:42:19,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 07:42:19,276 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2020-11-28 07:42:19,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:42:19,277 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:19,277 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:42:19,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:19,492 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:19,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:19,493 INFO L82 PathProgramCache]: Analyzing trace with hash 202692846, now seen corresponding path program 1 times [2020-11-28 07:42:19,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:19,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120481738] [2020-11-28 07:42:19,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:19,515 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:19,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768744184] [2020-11-28 07:42:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/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 [2020-11-28 07:42:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:19,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 07:42:19,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:19,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:19,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:19,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120481738] [2020-11-28 07:42:19,674 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:19,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768744184] [2020-11-28 07:42:19,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:42:19,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:42:19,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565159395] [2020-11-28 07:42:19,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:42:19,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:19,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:42:19,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:42:19,676 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 6 states. [2020-11-28 07:42:19,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:19,831 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2020-11-28 07:42:19,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:42:19,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-28 07:42:19,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:19,832 INFO L225 Difference]: With dead ends: 90 [2020-11-28 07:42:19,832 INFO L226 Difference]: Without dead ends: 63 [2020-11-28 07:42:19,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:42:19,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-28 07:42:19,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 44. [2020-11-28 07:42:19,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-28 07:42:19,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2020-11-28 07:42:19,843 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 11 [2020-11-28 07:42:19,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:19,843 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2020-11-28 07:42:19,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:42:19,843 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2020-11-28 07:42:19,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 07:42:19,844 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:19,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:42:20,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:20,045 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:20,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:20,045 INFO L82 PathProgramCache]: Analyzing trace with hash 560676318, now seen corresponding path program 1 times [2020-11-28 07:42:20,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:20,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421803274] [2020-11-28 07:42:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:20,077 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:20,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518944295] [2020-11-28 07:42:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/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 [2020-11-28 07:42:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:20,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 07:42:20,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:20,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:20,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:20,220 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:42:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:20,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421803274] [2020-11-28 07:42:20,264 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:20,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518944295] [2020-11-28 07:42:20,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:42:20,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 07:42:20,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041598378] [2020-11-28 07:42:20,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:42:20,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:20,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:42:20,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:42:20,266 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand 6 states. [2020-11-28 07:42:20,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:20,451 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2020-11-28 07:42:20,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:42:20,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-11-28 07:42:20,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:20,453 INFO L225 Difference]: With dead ends: 82 [2020-11-28 07:42:20,453 INFO L226 Difference]: Without dead ends: 80 [2020-11-28 07:42:20,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:42:20,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-28 07:42:20,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2020-11-28 07:42:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-28 07:42:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2020-11-28 07:42:20,467 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 12 [2020-11-28 07:42:20,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:20,468 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2020-11-28 07:42:20,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:42:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2020-11-28 07:42:20,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 07:42:20,468 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:20,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:42:20,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-28 07:42:20,684 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:20,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:20,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1939218465, now seen corresponding path program 1 times [2020-11-28 07:42:20,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:20,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98277613] [2020-11-28 07:42:20,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:20,697 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:20,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814293814] [2020-11-28 07:42:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:20,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 07:42:20,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:20,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:20,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:20,832 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:42:20,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:20,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98277613] [2020-11-28 07:42:20,853 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:20,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814293814] [2020-11-28 07:42:20,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:42:20,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2020-11-28 07:42:20,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533709778] [2020-11-28 07:42:20,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 07:42:20,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:20,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 07:42:20,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:42:20,855 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 7 states. [2020-11-28 07:42:23,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:23,172 INFO L93 Difference]: Finished difference Result 131 states and 156 transitions. [2020-11-28 07:42:23,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 07:42:23,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-28 07:42:23,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:23,175 INFO L225 Difference]: With dead ends: 131 [2020-11-28 07:42:23,175 INFO L226 Difference]: Without dead ends: 129 [2020-11-28 07:42:23,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-11-28 07:42:23,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-28 07:42:23,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 80. [2020-11-28 07:42:23,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-28 07:42:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 96 transitions. [2020-11-28 07:42:23,216 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 96 transitions. Word has length 14 [2020-11-28 07:42:23,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:23,216 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 96 transitions. [2020-11-28 07:42:23,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 07:42:23,216 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 96 transitions. [2020-11-28 07:42:23,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 07:42:23,218 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:23,218 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] [2020-11-28 07:42:23,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:23,444 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:23,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:23,445 INFO L82 PathProgramCache]: Analyzing trace with hash 545608989, now seen corresponding path program 1 times [2020-11-28 07:42:23,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:23,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299896467] [2020-11-28 07:42:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:23,461 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:23,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898159278] [2020-11-28 07:42:23,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:23,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 45 conjunts are in the unsatisfiable core [2020-11-28 07:42:23,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:23,742 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 07:42:23,742 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 07:42:24,037 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 07:42:24,046 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 07:42:24,052 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 07:42:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:24,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:24,151 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:42:24,778 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-28 07:42:24,778 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:42:26,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:26,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299896467] [2020-11-28 07:42:26,022 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:26,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898159278] [2020-11-28 07:42:26,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [912581171] [2020-11-28 07:42:26,050 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2020-11-28 07:42:26,050 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:42:26,055 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:42:26,061 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:42:26,062 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:42:26,191 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-28 07:42:26,643 FATAL L? ?]: Ignoring exception! java.util.ConcurrentModificationException at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1134) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-28 07:42:26,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 07:42:26,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2020-11-28 07:42:26,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166073344] [2020-11-28 07:42:26,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-28 07:42:26,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:26,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-28 07:42:26,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2020-11-28 07:42:26,647 INFO L87 Difference]: Start difference. First operand 80 states and 96 transitions. Second operand 19 states. [2020-11-28 07:42:27,139 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-11-28 07:42:27,464 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-11-28 07:42:28,104 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-11-28 07:42:29,247 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-28 07:42:29,446 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-11-28 07:42:29,674 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2020-11-28 07:42:30,289 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-11-28 07:42:31,242 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 34 [2020-11-28 07:42:31,393 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-11-28 07:42:32,108 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-11-28 07:42:32,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:32,134 INFO L93 Difference]: Finished difference Result 273 states and 326 transitions. [2020-11-28 07:42:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-11-28 07:42:32,137 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 23 [2020-11-28 07:42:32,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:32,139 INFO L225 Difference]: With dead ends: 273 [2020-11-28 07:42:32,140 INFO L226 Difference]: Without dead ends: 265 [2020-11-28 07:42:32,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=385, Invalid=1685, Unknown=0, NotChecked=0, Total=2070 [2020-11-28 07:42:32,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-11-28 07:42:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 171. [2020-11-28 07:42:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-28 07:42:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 213 transitions. [2020-11-28 07:42:32,179 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 213 transitions. Word has length 23 [2020-11-28 07:42:32,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:32,179 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 213 transitions. [2020-11-28 07:42:32,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-28 07:42:32,179 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 213 transitions. [2020-11-28 07:42:32,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:42:32,180 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:32,181 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:42:32,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:32,404 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:32,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:32,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1693825137, now seen corresponding path program 1 times [2020-11-28 07:42:32,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:32,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548484246] [2020-11-28 07:42:32,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:32,418 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:32,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700284770] [2020-11-28 07:42:32,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:32,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 07:42:32,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:32,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:32,516 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:32,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548484246] [2020-11-28 07:42:32,516 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:32,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700284770] [2020-11-28 07:42:32,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:42:32,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2020-11-28 07:42:32,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951052874] [2020-11-28 07:42:32,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:42:32,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:32,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:42:32,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:42:32,518 INFO L87 Difference]: Start difference. First operand 171 states and 213 transitions. Second operand 6 states. [2020-11-28 07:42:32,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:32,662 INFO L93 Difference]: Finished difference Result 268 states and 329 transitions. [2020-11-28 07:42:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:42:32,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-28 07:42:32,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:32,664 INFO L225 Difference]: With dead ends: 268 [2020-11-28 07:42:32,664 INFO L226 Difference]: Without dead ends: 167 [2020-11-28 07:42:32,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:42:32,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-11-28 07:42:32,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 156. [2020-11-28 07:42:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-11-28 07:42:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 191 transitions. [2020-11-28 07:42:32,693 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 191 transitions. Word has length 24 [2020-11-28 07:42:32,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:32,693 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 191 transitions. [2020-11-28 07:42:32,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:42:32,693 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 191 transitions. [2020-11-28 07:42:32,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 07:42:32,695 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:32,695 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:42:32,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:32,908 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:32,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:32,909 INFO L82 PathProgramCache]: Analyzing trace with hash 833545369, now seen corresponding path program 1 times [2020-11-28 07:42:32,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:32,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956941163] [2020-11-28 07:42:32,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:32,927 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:32,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [184596861] [2020-11-28 07:42:32,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:33,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-28 07:42:33,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:33,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:33,229 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:33,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956941163] [2020-11-28 07:42:33,229 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:33,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184596861] [2020-11-28 07:42:33,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [733209819] [2020-11-28 07:42:33,232 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2020-11-28 07:42:33,232 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:42:33,232 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:42:33,233 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:42:33,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:42:33,268 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-28 07:42:33,559 FATAL L? ?]: Ignoring exception! java.util.ConcurrentModificationException at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1134) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-28 07:42:33,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 07:42:33,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2020-11-28 07:42:33,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856598919] [2020-11-28 07:42:33,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 07:42:33,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:33,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 07:42:33,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-11-28 07:42:33,563 INFO L87 Difference]: Start difference. First operand 156 states and 191 transitions. Second operand 12 states. [2020-11-28 07:42:33,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:33,949 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2020-11-28 07:42:33,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 07:42:33,949 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2020-11-28 07:42:33,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:33,950 INFO L225 Difference]: With dead ends: 182 [2020-11-28 07:42:33,951 INFO L226 Difference]: Without dead ends: 46 [2020-11-28 07:42:33,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-11-28 07:42:33,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-28 07:42:33,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2020-11-28 07:42:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 07:42:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-11-28 07:42:33,976 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 27 [2020-11-28 07:42:33,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:33,977 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-11-28 07:42:33,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 07:42:33,977 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-11-28 07:42:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 07:42:33,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:42:33,979 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:42:34,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:34,204 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:42:34,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:42:34,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1042867306, now seen corresponding path program 1 times [2020-11-28 07:42:34,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:42:34,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956836538] [2020-11-28 07:42:34,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:42:34,215 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:42:34,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020532233] [2020-11-28 07:42:34,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:42:34,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 07:42:34,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:42:34,486 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:34,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:42:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:42:34,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956836538] [2020-11-28 07:42:34,735 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:42:34,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020532233] [2020-11-28 07:42:34,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1783970035] [2020-11-28 07:42:34,740 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2020-11-28 07:42:34,740 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:42:34,740 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:42:34,741 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:42:34,741 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:42:34,835 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-28 07:42:35,618 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:42:36,130 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2020-11-28 07:42:37,140 WARN L193 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-11-28 07:42:37,581 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2020-11-28 07:42:37,920 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-11-28 07:42:38,391 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-28 07:42:38,775 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-11-28 07:42:39,706 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 88 [2020-11-28 07:42:40,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-28 07:42:40,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7] total 20 [2020-11-28 07:42:40,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936556029] [2020-11-28 07:42:40,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 07:42:40,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:42:40,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 07:42:40,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2020-11-28 07:42:40,305 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 9 states. [2020-11-28 07:42:41,349 WARN L193 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 104 [2020-11-28 07:42:41,977 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2020-11-28 07:42:42,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:42:42,078 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-11-28 07:42:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:42:42,081 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2020-11-28 07:42:42,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:42:42,081 INFO L225 Difference]: With dead ends: 37 [2020-11-28 07:42:42,081 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:42:42,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 67 SyntacticMatches, 11 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2020-11-28 07:42:42,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:42:42,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:42:42,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:42:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:42:42,082 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-11-28 07:42:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:42:42,083 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:42:42,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 07:42:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:42:42,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:42:42,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:42:42,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:42:43,393 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2020-11-28 07:42:43,861 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 84 [2020-11-28 07:42:44,522 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 88 [2020-11-28 07:42:45,182 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2020-11-28 07:42:45,915 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 108 [2020-11-28 07:42:46,549 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2020-11-28 07:42:47,297 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 88 [2020-11-28 07:42:47,300 INFO L270 CegarLoopResult]: At program point L35-2(lines 35 73) the Hoare annotation is: (or (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= (select |#valid| 0) 0) (<= 1 ULTIMATE.start_main_~x~0) (= (select |#valid| |#t~string5.base|) 1) (<= ULTIMATE.start_main_~y~0 1) (= (select |#valid| |#t~string4.base|) 1) (= ULTIMATE.start_main_~r~0 0) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= ULTIMATE.start_main_~q~0 0) (= |#NULL.offset| 0) (= 0 |#t~string4.offset|) (= 11 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= ULTIMATE.start_main_~p~0 1) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (<= ULTIMATE.start_main_~a~0 1) (= |#t~string6.offset| 0) (= (select .cse0 (+ |#t~string4.offset| 1)) 0) (<= 1 ULTIMATE.start_main_~b~0))) (and (< ULTIMATE.start_main_~c~0 1) (<= (* 2 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~a~0) (= (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) (<= 0 ULTIMATE.start_main_~b~0) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0))) [2020-11-28 07:42:47,300 INFO L274 CegarLoopResult]: For program point L35-3(lines 35 73) no Hoare annotation was computed. [2020-11-28 07:42:47,300 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:42:47,300 INFO L274 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:42:47,300 INFO L270 CegarLoopResult]: At program point L11-1(lines 10 16) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= ULTIMATE.start_main_~r~0 0) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= ULTIMATE.start_main_~q~0 0) (= |#NULL.offset| 0) (not (= ULTIMATE.start_main_~y~0 0)) (= 0 |#t~string4.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (= 11 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= ULTIMATE.start_main_~p~0 1) (<= 0 ULTIMATE.start_main_~b~0) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (= ULTIMATE.start_main_~d~0 1) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (<= ULTIMATE.start_main_~a~0 1) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2020-11-28 07:42:47,300 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:42:47,301 INFO L270 CegarLoopResult]: At program point L11-3(lines 10 16) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= ULTIMATE.start_main_~q~0 0) (not (= ULTIMATE.start_main_~y~0 0)) (= |#NULL.offset| 0) (= 0 |#t~string4.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~a~0) (= 11 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0))) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~d~0 1) (<= 0 ULTIMATE.start_main_~v~0) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (<= ULTIMATE.start_main_~a~0 1) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2020-11-28 07:42:47,301 INFO L274 CegarLoopResult]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:42:47,301 INFO L270 CegarLoopResult]: At program point L11-5(lines 10 16) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~y~0) (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= ULTIMATE.start_main_~q~0 0) (= |#NULL.offset| 0) (not (= ULTIMATE.start_main_~y~0 0)) (= 0 |#t~string4.offset|) (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~a~0) (= 11 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0))) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (<= ULTIMATE.start_main_~a~0 1) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2020-11-28 07:42:47,301 INFO L274 CegarLoopResult]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:42:47,301 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-28 07:42:47,301 INFO L270 CegarLoopResult]: At program point L11-7(lines 55 56) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~y~0) (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= ULTIMATE.start_main_~q~0 0) (= |#NULL.offset| 0) (not (= ULTIMATE.start_main_~y~0 0)) (= 0 |#t~string4.offset|) (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~a~0) (= 11 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0))) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (<= ULTIMATE.start_main_~a~0 1) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2020-11-28 07:42:47,301 INFO L274 CegarLoopResult]: For program point L11-8(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:42:47,301 INFO L277 CegarLoopResult]: At program point L11-9(lines 10 16) the Hoare annotation is: true [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point L12(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L270 CegarLoopResult]: At program point L49-2(lines 49 59) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (<= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~r~0 0) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (= 0 |#t~string4.offset|) (= 11 (select |#length| |#t~string5.base|)) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= 2 (select |#length| |#t~string4.base|)) (<= |#NULL.base| 0) (<= ULTIMATE.start_main_~p~0 1) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (= ULTIMATE.start_main_~d~0 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (<= 1 ULTIMATE.start_main_~p~0) (<= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (<= 1 ULTIMATE.start_main_~c~0) (< 0 |#StackHeapBarrier|) (<= 0 |#NULL.base|) (= |#t~string6.offset| 0) (<= 0 ULTIMATE.start_main_~q~0) (<= ULTIMATE.start_main_~a~0 1) (= (select .cse0 (+ |#t~string4.offset| 1)) 0) (<= 1 ULTIMATE.start_main_~b~0))) [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point L49-3(lines 49 59) no Hoare annotation was computed. [2020-11-28 07:42:47,302 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:42:47,303 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 62) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~a~0)) (.cse1 (<= ULTIMATE.start_main_~y~0 1)) (.cse3 (<= ULTIMATE.start_main_~a~0 1))) (or (let ((.cse2 (select |#memory_int| |#t~string4.base|))) (and (<= ULTIMATE.start_main_~x~0 1) (<= ULTIMATE.start_main_~r~0 0) (<= ULTIMATE.start_main_~k~0 0) (<= 0 |#NULL.offset|) .cse0 (<= ULTIMATE.start_main_~s~0 1) (= (select |#valid| 0) 0) (<= 0 |#t~string4.offset|) (= (select |#valid| |#t~string5.base|) 1) .cse1 (= (select |#valid| |#t~string4.base|) 1) (<= 0 |#t~string5.offset|) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (<= |#t~string4.offset| 0) (= 11 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (<= |#NULL.base| 0) (<= ULTIMATE.start_main_~p~0 1) (<= 0 ULTIMATE.start_main_~r~0) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse2 |#t~string4.offset|)) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= |#t~string5.offset| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (<= 1 ULTIMATE.start_main_~p~0) (<= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (<= 1 ULTIMATE.start_main_~c~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (<= 0 |#NULL.base|) (<= 0 ULTIMATE.start_main_~k~0) (<= 0 ULTIMATE.start_main_~q~0) .cse3 (= |#t~string6.offset| 0) (= (select .cse2 (+ |#t~string4.offset| 1)) 0) (<= 1 ULTIMATE.start_main_~b~0) (<= |#NULL.offset| 0) (<= 1 ULTIMATE.start_main_~s~0))) (and (= ULTIMATE.start_main_~k~0 1) (<= 0 ULTIMATE.start_main_~c~0) (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~v~0 (* ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~b~0)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 (= ULTIMATE.start_main_~p~0 1) (<= 1 ULTIMATE.start_main_~x~0) (< ULTIMATE.start_main_~x~0 (* 2 ULTIMATE.start_main_~b~0)) (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) (< ULTIMATE.start_main_~c~0 1) .cse1 (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~s~0 1) (= ULTIMATE.start_main_~q~0 0) .cse3))) [2020-11-28 07:42:47,303 INFO L274 CegarLoopResult]: For program point L42-3(lines 42 62) no Hoare annotation was computed. [2020-11-28 07:42:47,303 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:42:47,303 INFO L274 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-11-28 07:42:47,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,338 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,346 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,346 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,346 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,346 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,349 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,350 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,350 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,350 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,350 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,352 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,353 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,353 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,354 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,354 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,354 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,354 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,355 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,355 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,355 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,355 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,356 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,357 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,360 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,360 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,363 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,363 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,363 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,363 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,363 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,364 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,366 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,366 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,366 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,367 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,367 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,367 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,367 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,368 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,368 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,368 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,368 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,372 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,372 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,372 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,372 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:42:47 BoogieIcfgContainer [2020-11-28 07:42:47,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:42:47,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:42:47,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:42:47,384 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:42:47,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:42:17" (3/4) ... [2020-11-28 07:42:47,388 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:42:47,400 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2020-11-28 07:42:47,400 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 07:42:47,401 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 07:42:47,401 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:42:47,427 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((a == x && \valid[0] == 0) && 1 <= x) && \valid["egcd3-ll.c"] == 1) && y <= 1) && \valid["0"] == 1) && r == 0) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && #NULL == 0) && 0 == "0") && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && a <= 1) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 1 <= b) || ((((c < 1 && 2 * b <= a) && p * x + r * y == a + q * x + s * y) && 0 <= b) && b <= c) [2020-11-28 07:42:47,427 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((((((((x <= 1 && r <= 0) && k <= 0) && 0 <= #NULL) && 1 <= a) && s <= 1) && \valid[0] == 0) && 0 <= "0") && \valid["egcd3-ll.c"] == 1) && y <= 1) && \valid["0"] == 1) && 0 <= "egcd3-ll.c") && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && "0" <= 0) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && p <= 1) && 0 <= r) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && "egcd3-ll.c" <= 0) && \old(cond) == 1) && 1 <= p) && q <= 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 1 <= c) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 0 <= k) && 0 <= q) && a <= 1) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 1 <= b) && #NULL <= 0) && 1 <= s) || (((((((((((((((k == 1 && 0 <= c) && v <= b) && v == d * b) && 1 <= cond) && 1 <= a) && p == 1) && 1 <= x) && x < 2 * b) && b == q * x + s * y) && c < 1) && y <= 1) && r == 0) && s == 1) && q == 0) && a <= 1) [2020-11-28 07:42:47,427 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((b == v && c == a) && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && y <= 1) && r == 0) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && #NULL == 0) && 0 == "0") && 11 == unknown-#length-unknown["egcd3-ll.c"]) && b <= y) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && p <= 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && d == 1) && \old(cond) == 1) && 1 <= p) && q <= 0) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 1 <= c) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && "reach_error" == 0) && 0 <= q) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 1 <= b [2020-11-28 07:42:47,428 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((b == v && \old(cond) == cond) && c == a) && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && r == 0) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && #NULL == 0) && !(y == 0)) && 0 == "0") && \old(cond) == 1) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && 0 <= b) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && d == 1) && b <= c) && b == y) && \old(cond) == 1) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2020-11-28 07:42:47,428 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((b == v && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && !(y == 0)) && #NULL == 0) && 0 == "0") && \old(cond) == 1) && c + b * k == a) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && a == p * x + r * y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && d == 1) && 0 <= v) && b <= c) && \old(cond) == 1) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2020-11-28 07:42:47,428 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((b == v && \old(cond) == cond) && 0 <= y) && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && #NULL == 0) && !(y == 0)) && 0 == "0") && c + b * k == a) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && a == p * x + r * y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && d == 1) && b == y) && b <= c) && \old(cond) == 1) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2020-11-28 07:42:47,429 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((b == v && \old(cond) == cond) && 0 <= y) && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && #NULL == 0) && !(y == 0)) && 0 == "0") && c + b * k == a) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && a == p * x + r * y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && d == 1) && b == y) && b <= c) && \old(cond) == 1) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2020-11-28 07:42:47,446 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b0a0a4fe-9827-40f8-9c33-9499bd9b97d6/bin/utaipan/witness.graphml [2020-11-28 07:42:47,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:42:47,447 INFO L168 Benchmark]: Toolchain (without parser) took 31337.26 ms. Allocated memory was 86.0 MB in the beginning and 188.7 MB in the end (delta: 102.8 MB). Free memory was 51.2 MB in the beginning and 60.1 MB in the end (delta: -8.9 MB). Peak memory consumption was 93.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:47,448 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 56.1 MB in the beginning and 56.1 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:42:47,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.99 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 51.0 MB in the beginning and 83.2 MB in the end (delta: -32.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:47,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.50 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 81.3 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:42:47,449 INFO L168 Benchmark]: Boogie Preprocessor took 25.47 ms. Allocated memory is still 107.0 MB. Free memory was 81.3 MB in the beginning and 80.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:47,450 INFO L168 Benchmark]: RCFGBuilder took 695.05 ms. Allocated memory is still 107.0 MB. Free memory was 80.1 MB in the beginning and 79.8 MB in the end (delta: 206.3 kB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:47,450 INFO L168 Benchmark]: TraceAbstraction took 30216.55 ms. Allocated memory was 107.0 MB in the beginning and 188.7 MB in the end (delta: 81.8 MB). Free memory was 79.4 MB in the beginning and 64.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 111.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:47,451 INFO L168 Benchmark]: Witness Printer took 62.59 ms. Allocated memory is still 188.7 MB. Free memory was 64.3 MB in the beginning and 60.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:42:47,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 56.1 MB in the beginning and 56.1 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.99 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 51.0 MB in the beginning and 83.2 MB in the end (delta: -32.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.50 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 81.3 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.47 ms. Allocated memory is still 107.0 MB. Free memory was 81.3 MB in the beginning and 80.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 695.05 ms. Allocated memory is still 107.0 MB. Free memory was 80.1 MB in the beginning and 79.8 MB in the end (delta: 206.3 kB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30216.55 ms. Allocated memory was 107.0 MB in the beginning and 188.7 MB in the end (delta: 81.8 MB). Free memory was 79.4 MB in the beginning and 64.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 111.2 MB. Max. memory is 16.1 GB. * Witness Printer took 62.59 ms. Allocated memory is still 188.7 MB. Free memory was 64.3 MB in the beginning and 60.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 49]: Loop Invariant [2020-11-28 07:42:47,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((((((((((((((((((((((((((((((b == v && c == a) && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && y <= 1) && r == 0) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && #NULL == 0) && 0 == "0") && 11 == unknown-#length-unknown["egcd3-ll.c"]) && b <= y) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && p <= 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && d == 1) && \old(cond) == 1) && 1 <= p) && q <= 0) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 1 <= c) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && "reach_error" == 0) && 0 <= q) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 1 <= b - InvariantResult [Line: 10]: Loop Invariant [2020-11-28 07:42:47,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,487 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,487 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,487 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,488 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,488 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,488 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,490 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,490 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,490 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((((((((((b == v && \old(cond) == cond) && c == a) && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && r == 0) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && #NULL == 0) && !(y == 0)) && 0 == "0") && \old(cond) == 1) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && 0 <= b) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && d == 1) && b <= c) && b == y) && \old(cond) == 1) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - InvariantResult [Line: 10]: Loop Invariant [2020-11-28 07:42:47,491 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,491 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,492 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,492 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,492 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,492 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,494 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,494 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,495 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,495 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,495 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,495 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,496 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,496 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,496 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,496 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,496 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((((((((((b == v && \old(cond) == cond) && 0 <= y) && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && #NULL == 0) && !(y == 0)) && 0 == "0") && c + b * k == a) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && a == p * x + r * y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && d == 1) && b == y) && b <= c) && \old(cond) == 1) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - InvariantResult [Line: 35]: Loop Invariant [2020-11-28 07:42:47,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((((((((((((((((((((((((a == x && \valid[0] == 0) && 1 <= x) && \valid["egcd3-ll.c"] == 1) && y <= 1) && \valid["0"] == 1) && r == 0) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && #NULL == 0) && 0 == "0") && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && a <= 1) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 1 <= b) || ((((c < 1 && 2 * b <= a) && p * x + r * y == a + q * x + s * y) && 0 <= b) && b <= c) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant [2020-11-28 07:42:47,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,512 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((((((((((b == v && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && !(y == 0)) && #NULL == 0) && 0 == "0") && \old(cond) == 1) && c + b * k == a) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && a == p * x + r * y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && d == 1) && 0 <= v) && b <= c) && \old(cond) == 1) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - InvariantResult [Line: 42]: Loop Invariant [2020-11-28 07:42:47,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((x <= 1 && r <= 0) && k <= 0) && 0 <= #NULL) && 1 <= a) && s <= 1) && \valid[0] == 0) && 0 <= "0") && \valid["egcd3-ll.c"] == 1) && y <= 1) && \valid["0"] == 1) && 0 <= "egcd3-ll.c") && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && "0" <= 0) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && p <= 1) && 0 <= r) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && "egcd3-ll.c" <= 0) && \old(cond) == 1) && 1 <= p) && q <= 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 1 <= c) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 0 <= k) && 0 <= q) && a <= 1) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 1 <= b) && #NULL <= 0) && 1 <= s) || (((((((((((((((k == 1 && 0 <= c) && v <= b) && v == d * b) && 1 <= cond) && 1 <= a) && p == 1) && 1 <= x) && x < 2 * b) && b == q * x + s * y) && c < 1) && y <= 1) && r == 0) && s == 1) && q == 0) && a <= 1) - InvariantResult [Line: 55]: Loop Invariant [2020-11-28 07:42:47,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:42:47,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:42:47,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:42:47,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:42:47,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((((((((((b == v && \old(cond) == cond) && 0 <= y) && \valid[0] == 0) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "egcd3-ll.c" == 0) && s == 1) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && q == 0) && #NULL == 0) && !(y == 0)) && 0 == "0") && c + b * k == a) && 11 == unknown-#length-unknown["egcd3-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && p == 1) && a == p * x + r * y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && d == 1) && b == y) && b <= c) && \old(cond) == 1) && k == 0) && c == x) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && a <= 1) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.0s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 242 SDtfs, 940 SDslu, 745 SDs, 0 SdLazy, 1033 SolverSat, 211 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 263 SyntacticMatches, 18 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 231 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 19 NumberOfFragments, 1061 HoareAnnotationTreeSize, 8 FomulaSimplifications, 1231 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 8 FomulaSimplificationsInter, 673 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 320 ConstructedInterpolants, 2 QuantifiedInterpolants, 74851 SizeOfPredicates, 72 NumberOfNonLiveVariables, 983 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 21 InterpolantComputations, 15 PerfectInterpolantSequences, 62/98 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: OVERALL_TIME[ms]: 879, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 20, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 39, TOOLS_POST_TIME[ms]: 198, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 31, TOOLS_QUANTIFIERELIM_TIME[ms]: 190, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 145, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 59, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME[ms]: 568, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME[ms]: 94, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 51, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 51, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 1, PATH_EXPR_TIME[ms]: 0, REGEX_TO_DAG_TIME[ms]: 0, DAG_COMPRESSION_TIME[ms]: 8, DAG_COMPRESSION_PROCESSED_NODES: 578, DAG_COMPRESSION_RETAINED_NODES: 64, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...