./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound10.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_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/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 5da91b34210bfa003fb6e2853ff11c725ed100dc ................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 07:39:54,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:54,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:54,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:54,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:54,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:54,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:54,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:54,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:54,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:54,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:54,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:54,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:54,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:54,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:54,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:54,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:54,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:54,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:54,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:54,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:54,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:54,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:54,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:54,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:54,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:54,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:54,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:54,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:54,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:54,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:54,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:54,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:54,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:54,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:54,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:54,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:54,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:54,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:54,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:54,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:54,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:39:54,177 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:54,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:54,181 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:54,181 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:54,182 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:54,182 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:54,182 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:39:54,183 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:54,183 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:54,183 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:39:54,184 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:39:54,185 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:54,185 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:39:54,185 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:39:54,185 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:39:54,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:54,187 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:54,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:39:54,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:54,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:54,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:54,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:54,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:54,188 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:39:54,189 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:54,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:54,189 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:54,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:54,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:54,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:54,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:54,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:54,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:54,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:54,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:54,193 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:39:54,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:39:54,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:54,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:54,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:54,194 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_dc28c053-8db1-40bf-8d72-6805c4e022be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5da91b34210bfa003fb6e2853ff11c725ed100dc [2020-11-28 07:39:54,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:54,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:54,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:54,508 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:54,510 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:54,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound10.c [2020-11-28 07:39:54,587 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/data/785a423dc/8ea14e64aae14216a624d9b8d756d656/FLAGca3bc7249 [2020-11-28 07:39:55,088 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:55,089 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound10.c [2020-11-28 07:39:55,098 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/data/785a423dc/8ea14e64aae14216a624d9b8d756d656/FLAGca3bc7249 [2020-11-28 07:39:55,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/data/785a423dc/8ea14e64aae14216a624d9b8d756d656 [2020-11-28 07:39:55,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:55,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:55,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:55,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:55,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:55,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112ff706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55, skipping insertion in model container [2020-11-28 07:39:55,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:55,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:55,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:55,732 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:55,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:55,767 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:55,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55 WrapperNode [2020-11-28 07:39:55,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:55,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:55,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:55,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:55,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:55,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:55,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:55,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:55,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... [2020-11-28 07:39:55,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:55,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:55,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:55,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:55,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/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 07:39:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:39:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:56,494 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:56,495 INFO L298 CfgBuilder]: Removed 35 assume(true) statements. [2020-11-28 07:39:56,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:56 BoogieIcfgContainer [2020-11-28 07:39:56,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:56,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:56,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:56,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:56,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:55" (1/3) ... [2020-11-28 07:39:56,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43084630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:56, skipping insertion in model container [2020-11-28 07:39:56,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:55" (2/3) ... [2020-11-28 07:39:56,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43084630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:56, skipping insertion in model container [2020-11-28 07:39:56,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:56" (3/3) ... [2020-11-28 07:39:56,505 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound10.c [2020-11-28 07:39:56,533 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:56,551 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-28 07:39:56,575 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-28 07:39:56,613 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:56,613 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:56,613 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:56,613 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:56,613 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:56,614 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:56,614 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:56,614 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:56,630 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-28 07:39:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:39:56,635 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:56,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:39:56,637 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 07:39:56,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:56,643 INFO L82 PathProgramCache]: Analyzing trace with hash 184804590, now seen corresponding path program 1 times [2020-11-28 07:39:56,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:56,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650811327] [2020-11-28 07:39:56,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:56,801 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 07:39:56,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650811327] [2020-11-28 07:39:56,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:56,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:39:56,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687768948] [2020-11-28 07:39:56,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:39:56,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:56,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:39:56,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:39:56,824 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-28 07:39:56,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:56,840 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2020-11-28 07:39:56,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:39:56,842 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-11-28 07:39:56,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:56,850 INFO L225 Difference]: With dead ends: 59 [2020-11-28 07:39:56,850 INFO L226 Difference]: Without dead ends: 28 [2020-11-28 07:39:56,853 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 07:39:56,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-28 07:39:56,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-28 07:39:56,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-28 07:39:56,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-11-28 07:39:56,886 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2020-11-28 07:39:56,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:56,886 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-11-28 07:39:56,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:39:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-11-28 07:39:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:39:56,887 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:56,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:39:56,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:39:56,888 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 07:39:56,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:56,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1325115871, now seen corresponding path program 1 times [2020-11-28 07:39:56,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:56,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17043710] [2020-11-28 07:39:56,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:56,918 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:39:56,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81398408] [2020-11-28 07:39:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/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 07:39:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:57,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 07:39:57,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:57,099 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 07:39:57,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:57,112 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 07:39:57,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17043710] [2020-11-28 07:39:57,113 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:39:57,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81398408] [2020-11-28 07:39:57,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:57,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:39:57,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671140059] [2020-11-28 07:39:57,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:39:57,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:57,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:39:57,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:39:57,117 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 3 states. [2020-11-28 07:39:57,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:57,179 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2020-11-28 07:39:57,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:39:57,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 07:39:57,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:57,181 INFO L225 Difference]: With dead ends: 55 [2020-11-28 07:39:57,181 INFO L226 Difference]: Without dead ends: 51 [2020-11-28 07:39:57,182 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 07:39:57,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-28 07:39:57,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 30. [2020-11-28 07:39:57,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 07:39:57,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-11-28 07:39:57,188 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 6 [2020-11-28 07:39:57,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:57,188 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-11-28 07:39:57,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:39:57,189 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-11-28 07:39:57,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:39:57,189 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:57,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:57,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 07:39:57,404 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 07:39:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:57,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2108927896, now seen corresponding path program 1 times [2020-11-28 07:39:57,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:57,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018701624] [2020-11-28 07:39:57,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:57,437 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:39:57,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939008877] [2020-11-28 07:39:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/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 07:39:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:57,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 07:39:57,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:57,579 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 07:39:57,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:57,610 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:39:57,619 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 07:39:57,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018701624] [2020-11-28 07:39:57,619 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:39:57,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939008877] [2020-11-28 07:39:57,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:57,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 3 [2020-11-28 07:39:57,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687512030] [2020-11-28 07:39:57,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:39:57,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:57,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:39:57,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:39:57,622 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 4 states. [2020-11-28 07:39:57,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:57,624 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-11-28 07:39:57,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:39:57,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-28 07:39:57,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:57,629 INFO L225 Difference]: With dead ends: 30 [2020-11-28 07:39:57,629 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:39:57,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:39:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:39:57,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:39:57,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:39:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:39:57,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-28 07:39:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:57,633 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:39:57,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:39:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:39:57,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:39:57,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:39:57,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:39:57,920 INFO L270 CegarLoopResult]: At program point L35-2(lines 35 73) the Hoare annotation is: false [2020-11-28 07:39:57,920 INFO L274 CegarLoopResult]: For program point L35-3(lines 35 73) no Hoare annotation was computed. [2020-11-28 07:39:57,920 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:39:57,921 INFO L274 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:39:57,921 INFO L270 CegarLoopResult]: At program point L11-1(lines 10 16) the Hoare annotation is: false [2020-11-28 07:39:57,921 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:39:57,921 INFO L270 CegarLoopResult]: At program point L11-3(lines 10 16) the Hoare annotation is: false [2020-11-28 07:39:57,921 INFO L274 CegarLoopResult]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:39:57,921 INFO L270 CegarLoopResult]: At program point L11-5(lines 10 16) the Hoare annotation is: false [2020-11-28 07:39:57,922 INFO L274 CegarLoopResult]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:39:57,922 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-28 07:39:57,922 INFO L270 CegarLoopResult]: At program point L11-7(lines 55 56) the Hoare annotation is: false [2020-11-28 07:39:57,922 INFO L274 CegarLoopResult]: For program point L11-8(lines 11 14) no Hoare annotation was computed. [2020-11-28 07:39:57,922 INFO L277 CegarLoopResult]: At program point L11-9(lines 10 16) the Hoare annotation is: true [2020-11-28 07:39:57,922 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:39:57,923 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:39:57,923 INFO L274 CegarLoopResult]: For program point L12(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:39:57,923 INFO L274 CegarLoopResult]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:39:57,923 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:39:57,923 INFO L274 CegarLoopResult]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:39:57,923 INFO L274 CegarLoopResult]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2020-11-28 07:39:57,923 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:39:57,924 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:39:57,924 INFO L270 CegarLoopResult]: At program point L49-2(lines 49 59) the Hoare annotation is: false [2020-11-28 07:39:57,924 INFO L274 CegarLoopResult]: For program point L49-3(lines 49 59) no Hoare annotation was computed. [2020-11-28 07:39:57,924 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:39:57,924 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 62) the Hoare annotation is: false [2020-11-28 07:39:57,927 INFO L274 CegarLoopResult]: For program point L42-3(lines 42 62) no Hoare annotation was computed. [2020-11-28 07:39:57,927 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 07:39:57,928 INFO L274 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-11-28 07:39:57,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:57 BoogieIcfgContainer [2020-11-28 07:39:57,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:57,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:57,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:57,939 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:57,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:56" (3/4) ... [2020-11-28 07:39:57,943 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:39:57,961 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2020-11-28 07:39:57,962 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 07:39:57,962 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 07:39:57,963 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:39:58,031 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dc28c053-8db1-40bf-8d72-6805c4e022be/bin/utaipan/witness.graphml [2020-11-28 07:39:58,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:58,037 INFO L168 Benchmark]: Toolchain (without parser) took 2568.93 ms. Allocated memory is still 109.1 MB. Free memory was 81.5 MB in the beginning and 73.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:58,037 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:58,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.03 ms. Allocated memory is still 109.1 MB. Free memory was 81.5 MB in the beginning and 87.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:58,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.45 ms. Allocated memory is still 109.1 MB. Free memory was 87.3 MB in the beginning and 85.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:58,038 INFO L168 Benchmark]: Boogie Preprocessor took 37.65 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 84.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:58,039 INFO L168 Benchmark]: RCFGBuilder took 639.28 ms. Allocated memory is still 109.1 MB. Free memory was 84.4 MB in the beginning and 56.2 MB in the end (delta: 28.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:58,039 INFO L168 Benchmark]: TraceAbstraction took 1440.00 ms. Allocated memory is still 109.1 MB. Free memory was 55.8 MB in the beginning and 76.6 MB in the end (delta: -20.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:58,040 INFO L168 Benchmark]: Witness Printer took 95.91 ms. Allocated memory is still 109.1 MB. Free memory was 76.6 MB in the beginning and 73.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:58,045 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 83.9 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.03 ms. Allocated memory is still 109.1 MB. Free memory was 81.5 MB in the beginning and 87.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.45 ms. Allocated memory is still 109.1 MB. Free memory was 87.3 MB in the beginning and 85.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.65 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 84.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 639.28 ms. Allocated memory is still 109.1 MB. Free memory was 84.4 MB in the beginning and 56.2 MB in the end (delta: 28.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1440.00 ms. Allocated memory is still 109.1 MB. Free memory was 55.8 MB in the beginning and 76.6 MB in the end (delta: -20.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 95.91 ms. Allocated memory is still 109.1 MB. Free memory was 76.6 MB in the beginning and 73.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 23 SDslu, 21 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 547 SizeOfPredicates, 12 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...