./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_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:01:43,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:01:43,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:01:44,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:01:44,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:01:44,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:01:44,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:01:44,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:01:44,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:01:44,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:01:44,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:01:44,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:01:44,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:01:44,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:01:44,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:01:44,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:01:44,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:01:44,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:01:44,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:01:44,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:01:44,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:01:44,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:01:44,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:01:44,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:01:44,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:01:44,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:01:44,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:01:44,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:01:44,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:01:44,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:01:44,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:01:44,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:01:44,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:01:44,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:01:44,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:01:44,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:01:44,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:01:44,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:01:44,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:01:44,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:01:44,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:01:44,136 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:01:44,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:01:44,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:01:44,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:01:44,166 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:01:44,167 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:01:44,167 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:01:44,168 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:01:44,168 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:01:44,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:01:44,169 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:01:44,170 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:01:44,170 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:01:44,171 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:01:44,171 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:01:44,171 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:01:44,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:01:44,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:01:44,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:01:44,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:01:44,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:01:44,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:01:44,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:01:44,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:01:44,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:01:44,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:01:44,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:01:44,177 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:01:44,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:01:44,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:01:44,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:01:44,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:01:44,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:01:44,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:01:44,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:01:44,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:01:44,179 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:01:44,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:01:44,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:01:44,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:01:44,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:01:44,180 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_1f3c8535-4f06-4218-a70e-a1f3a118985f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec0e5925e997c01ed0feba8438589759f7e6730 [2020-11-30 02:01:44,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:01:44,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:01:44,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:01:44,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:01:44,501 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:01:44,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c [2020-11-30 02:01:44,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/data/98d923420/8fc5be36b6754be9b4ed71e4ff088ad1/FLAGf57891943 [2020-11-30 02:01:45,174 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:01:45,174 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c [2020-11-30 02:01:45,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/data/98d923420/8fc5be36b6754be9b4ed71e4ff088ad1/FLAGf57891943 [2020-11-30 02:01:45,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/data/98d923420/8fc5be36b6754be9b4ed71e4ff088ad1 [2020-11-30 02:01:45,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:01:45,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:01:45,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:01:45,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:01:45,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:01:45,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:45,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45643f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45, skipping insertion in model container [2020-11-30 02:01:45,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:45,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:01:45,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:01:45,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:01:45,896 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:01:45,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:01:45,965 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:01:45,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45 WrapperNode [2020-11-30 02:01:45,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:01:45,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:01:45,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:01:45,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:01:45,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:46,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:46,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:01:46,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:01:46,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:01:46,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:01:46,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:46,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:46,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:46,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:46,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:46,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:46,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... [2020-11-30 02:01:46,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:01:46,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:01:46,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:01:46,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:01:46,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:01:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:01:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:01:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:01:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:01:46,986 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:01:46,986 INFO L298 CfgBuilder]: Removed 35 assume(true) statements. [2020-11-30 02:01:46,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:46 BoogieIcfgContainer [2020-11-30 02:01:46,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:01:46,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:01:46,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:01:46,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:01:46,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:01:45" (1/3) ... [2020-11-30 02:01:46,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0c030b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:01:46, skipping insertion in model container [2020-11-30 02:01:46,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:45" (2/3) ... [2020-11-30 02:01:46,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0c030b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:01:46, skipping insertion in model container [2020-11-30 02:01:46,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:46" (3/3) ... [2020-11-30 02:01:47,001 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound1.c [2020-11-30 02:01:47,014 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:01:47,019 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-30 02:01:47,032 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-30 02:01:47,062 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:01:47,062 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:01:47,062 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:01:47,063 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:01:47,063 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:01:47,063 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:01:47,063 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:01:47,063 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:01:47,080 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-30 02:01:47,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:01:47,086 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:47,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:01:47,088 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]=== [2020-11-30 02:01:47,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:47,095 INFO L82 PathProgramCache]: Analyzing trace with hash 184804590, now seen corresponding path program 1 times [2020-11-30 02:01:47,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:47,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939799560] [2020-11-30 02:01:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:47,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939799560] [2020-11-30 02:01:47,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:47,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:01:47,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715207588] [2020-11-30 02:01:47,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:01:47,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:47,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:01:47,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:01:47,331 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-30 02:01:47,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:47,351 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2020-11-30 02:01:47,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:01:47,352 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-11-30 02:01:47,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:47,370 INFO L225 Difference]: With dead ends: 59 [2020-11-30 02:01:47,370 INFO L226 Difference]: Without dead ends: 28 [2020-11-30 02:01:47,373 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 [2020-11-30 02:01:47,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-30 02:01:47,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-30 02:01:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 02:01:47,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-11-30 02:01:47,404 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2020-11-30 02:01:47,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:47,405 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-11-30 02:01:47,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:01:47,405 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-11-30 02:01:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 02:01:47,405 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:47,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 02:01:47,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:01:47,406 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]=== [2020-11-30 02:01:47,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:47,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1325115871, now seen corresponding path program 1 times [2020-11-30 02:01:47,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:47,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588999170] [2020-11-30 02:01:47,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:47,450 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:01:47,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671515119] [2020-11-30 02:01:47,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:01:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:47,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:01:47,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:47,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:47,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:47,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588999170] [2020-11-30 02:01:47,768 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:47,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671515119] [2020-11-30 02:01:47,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:47,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:01:47,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949189218] [2020-11-30 02:01:47,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:01:47,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:47,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:01:47,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:47,772 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 3 states. [2020-11-30 02:01:47,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:47,850 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2020-11-30 02:01:47,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:01:47,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 02:01:47,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:47,852 INFO L225 Difference]: With dead ends: 55 [2020-11-30 02:01:47,853 INFO L226 Difference]: Without dead ends: 51 [2020-11-30 02:01:47,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:01:47,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-30 02:01:47,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 30. [2020-11-30 02:01:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 02:01:47,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-11-30 02:01:47,871 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 6 [2020-11-30 02:01:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:47,876 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-11-30 02:01:47,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:01:47,878 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-11-30 02:01:47,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:01:47,879 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:47,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:01:48,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 02:01:48,096 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]=== [2020-11-30 02:01:48,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:48,096 INFO L82 PathProgramCache]: Analyzing trace with hash 2108927896, now seen corresponding path program 1 times [2020-11-30 02:01:48,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:48,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060830092] [2020-11-30 02:01:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:48,123 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:01:48,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557325979] [2020-11-30 02:01:48,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:01:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:48,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 02:01:48,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:48,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:48,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:48,479 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:01:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:48,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060830092] [2020-11-30 02:01:48,526 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:48,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557325979] [2020-11-30 02:01:48,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:48,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 02:01:48,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65939095] [2020-11-30 02:01:48,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 02:01:48,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:48,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 02:01:48,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 02:01:48,529 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 7 states. [2020-11-30 02:01:48,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:48,813 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2020-11-30 02:01:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 02:01:48,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-11-30 02:01:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:48,815 INFO L225 Difference]: With dead ends: 51 [2020-11-30 02:01:48,815 INFO L226 Difference]: Without dead ends: 49 [2020-11-30 02:01:48,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-30 02:01:48,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-30 02:01:48,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2020-11-30 02:01:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-30 02:01:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-11-30 02:01:48,833 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 8 [2020-11-30 02:01:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:48,834 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-11-30 02:01:48,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 02:01:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-11-30 02:01:48,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:01:48,836 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:48,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:01:49,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:49,052 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]=== [2020-11-30 02:01:49,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:49,052 INFO L82 PathProgramCache]: Analyzing trace with hash -544667557, now seen corresponding path program 1 times [2020-11-30 02:01:49,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:49,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763298702] [2020-11-30 02:01:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:49,070 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:01:49,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1093440582] [2020-11-30 02:01:49,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:01:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:49,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 02:01:49,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:49,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:49,302 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:01:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:49,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763298702] [2020-11-30 02:01:49,394 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:49,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093440582] [2020-11-30 02:01:49,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:49,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 02:01:49,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352479451] [2020-11-30 02:01:49,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 02:01:49,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:49,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 02:01:49,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 02:01:49,397 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-11-30 02:01:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:49,542 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-11-30 02:01:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 02:01:49,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-11-30 02:01:49,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:49,544 INFO L225 Difference]: With dead ends: 49 [2020-11-30 02:01:49,544 INFO L226 Difference]: Without dead ends: 47 [2020-11-30 02:01:49,545 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 [2020-11-30 02:01:49,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-30 02:01:49,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2020-11-30 02:01:49,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-30 02:01:49,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2020-11-30 02:01:49,554 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 10 [2020-11-30 02:01:49,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:49,554 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2020-11-30 02:01:49,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 02:01:49,555 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2020-11-30 02:01:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:01:49,555 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:49,556 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:01:49,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:49,761 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]=== [2020-11-30 02:01:49,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:49,761 INFO L82 PathProgramCache]: Analyzing trace with hash 202692846, now seen corresponding path program 1 times [2020-11-30 02:01:49,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:49,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635052547] [2020-11-30 02:01:49,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:49,794 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:01:49,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43648739] [2020-11-30 02:01:49,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:01:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:49,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 02:01:49,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:49,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:49,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:49,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:49,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635052547] [2020-11-30 02:01:49,947 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:49,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43648739] [2020-11-30 02:01:49,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:49,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 02:01:49,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931686584] [2020-11-30 02:01:49,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:01:49,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:49,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:01:49,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:01:49,949 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 6 states. [2020-11-30 02:01:50,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:50,122 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2020-11-30 02:01:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:01:50,123 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-30 02:01:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:50,124 INFO L225 Difference]: With dead ends: 90 [2020-11-30 02:01:50,124 INFO L226 Difference]: Without dead ends: 63 [2020-11-30 02:01:50,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:01:50,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-30 02:01:50,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 44. [2020-11-30 02:01:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-30 02:01:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2020-11-30 02:01:50,134 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 11 [2020-11-30 02:01:50,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:50,134 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2020-11-30 02:01:50,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:01:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2020-11-30 02:01:50,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 02:01:50,135 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:50,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:01:50,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:50,337 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]=== [2020-11-30 02:01:50,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:50,337 INFO L82 PathProgramCache]: Analyzing trace with hash 560676318, now seen corresponding path program 1 times [2020-11-30 02:01:50,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:50,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107767417] [2020-11-30 02:01:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:50,353 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:01:50,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [344914844] [2020-11-30 02:01:50,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:01:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:50,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 02:01:50,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:50,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:50,474 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:01:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:50,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107767417] [2020-11-30 02:01:50,503 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:50,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344914844] [2020-11-30 02:01:50,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:50,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 02:01:50,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84202085] [2020-11-30 02:01:50,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:01:50,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:50,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:01:50,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:01:50,505 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand 6 states. [2020-11-30 02:01:50,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:50,691 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2020-11-30 02:01:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 02:01:50,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-11-30 02:01:50,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:50,696 INFO L225 Difference]: With dead ends: 82 [2020-11-30 02:01:50,697 INFO L226 Difference]: Without dead ends: 80 [2020-11-30 02:01:50,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:01:50,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-30 02:01:50,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2020-11-30 02:01:50,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-30 02:01:50,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2020-11-30 02:01:50,712 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 12 [2020-11-30 02:01:50,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:50,713 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2020-11-30 02:01:50,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:01:50,713 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2020-11-30 02:01:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 02:01:50,714 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:50,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:01:50,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-30 02:01:50,934 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]=== [2020-11-30 02:01:50,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:50,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1939218465, now seen corresponding path program 1 times [2020-11-30 02:01:50,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:50,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846485947] [2020-11-30 02:01:50,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:50,961 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:01:50,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151352237] [2020-11-30 02:01:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:01:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:51,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 02:01:51,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:51,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:51,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:51,177 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:01:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:51,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846485947] [2020-11-30 02:01:51,217 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:51,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151352237] [2020-11-30 02:01:51,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:51,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2020-11-30 02:01:51,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005934875] [2020-11-30 02:01:51,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 02:01:51,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:51,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 02:01:51,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 02:01:51,220 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 7 states. [2020-11-30 02:01:53,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:53,673 INFO L93 Difference]: Finished difference Result 131 states and 156 transitions. [2020-11-30 02:01:53,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 02:01:53,673 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-30 02:01:53,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:53,676 INFO L225 Difference]: With dead ends: 131 [2020-11-30 02:01:53,677 INFO L226 Difference]: Without dead ends: 129 [2020-11-30 02:01:53,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-11-30 02:01:53,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-30 02:01:53,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 80. [2020-11-30 02:01:53,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-30 02:01:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 96 transitions. [2020-11-30 02:01:53,697 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 96 transitions. Word has length 14 [2020-11-30 02:01:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:53,698 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 96 transitions. [2020-11-30 02:01:53,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 02:01:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 96 transitions. [2020-11-30 02:01:53,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 02:01:53,699 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:53,700 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] [2020-11-30 02:01:53,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:01:53,928 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]=== [2020-11-30 02:01:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:53,928 INFO L82 PathProgramCache]: Analyzing trace with hash 545608989, now seen corresponding path program 1 times [2020-11-30 02:01:53,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:53,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641210010] [2020-11-30 02:01:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:53,948 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:01:53,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721563698] [2020-11-30 02:01:53,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:01:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:54,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 45 conjunts are in the unsatisfiable core [2020-11-30 02:01:54,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:01:54,304 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 02:01:54,306 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 02:01:54,645 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 02:01:54,657 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 02:01:54,661 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 02:01:54,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:54,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:54,787 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:01:55,379 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-30 02:01:55,383 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:01:55,889 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-11-30 02:01:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:57,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641210010] [2020-11-30 02:01:57,272 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:01:57,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721563698] [2020-11-30 02:01:57,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1405227953] [2020-11-30 02:01:57,296 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2020-11-30 02:01:57,296 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:01:57,301 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:01:57,307 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:01:57,307 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:01:57,423 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-30 02:01:57,879 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) [2020-11-30 02:01:57,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 02:01:57,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2020-11-30 02:01:57,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616903528] [2020-11-30 02:01:57,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-30 02:01:57,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:57,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-30 02:01:57,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2020-11-30 02:01:57,882 INFO L87 Difference]: Start difference. First operand 80 states and 96 transitions. Second operand 19 states. [2020-11-30 02:01:59,444 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-11-30 02:02:00,566 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-30 02:02:00,951 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-11-30 02:02:01,783 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-11-30 02:02:01,941 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2020-11-30 02:02:04,269 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 34 [2020-11-30 02:02:04,527 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-11-30 02:02:05,723 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-11-30 02:02:05,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:02:05,773 INFO L93 Difference]: Finished difference Result 273 states and 326 transitions. [2020-11-30 02:02:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-11-30 02:02:05,775 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 23 [2020-11-30 02:02:05,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:02:05,778 INFO L225 Difference]: With dead ends: 273 [2020-11-30 02:02:05,778 INFO L226 Difference]: Without dead ends: 265 [2020-11-30 02:02:05,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=385, Invalid=1685, Unknown=0, NotChecked=0, Total=2070 [2020-11-30 02:02:05,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-11-30 02:02:05,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 171. [2020-11-30 02:02:05,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-30 02:02:05,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 213 transitions. [2020-11-30 02:02:05,865 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 213 transitions. Word has length 23 [2020-11-30 02:02:05,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:02:05,866 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 213 transitions. [2020-11-30 02:02:05,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-30 02:02:05,866 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 213 transitions. [2020-11-30 02:02:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 02:02:05,868 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:02:05,868 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:02:06,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:02:06,082 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]=== [2020-11-30 02:02:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:02:06,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1693825137, now seen corresponding path program 1 times [2020-11-30 02:02:06,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:02:06,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552505347] [2020-11-30 02:02:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:02:06,106 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:02:06,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [888328400] [2020-11-30 02:02:06,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:02:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:02:06,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 02:02:06,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:02:06,210 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:02:06,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:02:06,222 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:02:06,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552505347] [2020-11-30 02:02:06,222 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:02:06,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888328400] [2020-11-30 02:02:06,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:02:06,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2020-11-30 02:02:06,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331933584] [2020-11-30 02:02:06,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:02:06,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:02:06,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:02:06,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:02:06,224 INFO L87 Difference]: Start difference. First operand 171 states and 213 transitions. Second operand 6 states. [2020-11-30 02:02:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:02:06,372 INFO L93 Difference]: Finished difference Result 268 states and 329 transitions. [2020-11-30 02:02:06,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:02:06,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-30 02:02:06,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:02:06,375 INFO L225 Difference]: With dead ends: 268 [2020-11-30 02:02:06,375 INFO L226 Difference]: Without dead ends: 167 [2020-11-30 02:02:06,378 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 [2020-11-30 02:02:06,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-11-30 02:02:06,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 156. [2020-11-30 02:02:06,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-11-30 02:02:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 191 transitions. [2020-11-30 02:02:06,415 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 191 transitions. Word has length 24 [2020-11-30 02:02:06,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:02:06,416 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 191 transitions. [2020-11-30 02:02:06,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:02:06,416 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 191 transitions. [2020-11-30 02:02:06,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 02:02:06,417 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:02:06,418 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:02:06,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:02:06,632 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]=== [2020-11-30 02:02:06,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:02:06,632 INFO L82 PathProgramCache]: Analyzing trace with hash 833545369, now seen corresponding path program 1 times [2020-11-30 02:02:06,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:02:06,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543423539] [2020-11-30 02:02:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:02:06,651 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:02:06,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890005904] [2020-11-30 02:02:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:02:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:02:06,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-30 02:02:06,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:02:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:02:06,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:02:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:02:07,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543423539] [2020-11-30 02:02:07,033 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:02:07,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890005904] [2020-11-30 02:02:07,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [165526776] [2020-11-30 02:02:07,036 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2020-11-30 02:02:07,036 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:02:07,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:02:07,037 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:02:07,037 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:02:07,092 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-30 02:02:07,456 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) [2020-11-30 02:02:07,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 02:02:07,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2020-11-30 02:02:07,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453532189] [2020-11-30 02:02:07,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-30 02:02:07,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:02:07,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-30 02:02:07,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-11-30 02:02:07,459 INFO L87 Difference]: Start difference. First operand 156 states and 191 transitions. Second operand 12 states. [2020-11-30 02:02:07,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:02:07,882 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2020-11-30 02:02:07,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 02:02:07,883 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2020-11-30 02:02:07,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:02:07,884 INFO L225 Difference]: With dead ends: 182 [2020-11-30 02:02:07,884 INFO L226 Difference]: Without dead ends: 46 [2020-11-30 02:02:07,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-11-30 02:02:07,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-30 02:02:07,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2020-11-30 02:02:07,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 02:02:07,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-11-30 02:02:07,916 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 27 [2020-11-30 02:02:07,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:02:07,916 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-11-30 02:02:07,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-30 02:02:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-11-30 02:02:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-30 02:02:07,923 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:02:07,923 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:02:08,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:02:08,140 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]=== [2020-11-30 02:02:08,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:02:08,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1042867306, now seen corresponding path program 1 times [2020-11-30 02:02:08,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:02:08,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796748795] [2020-11-30 02:02:08,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:02:08,163 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 02:02:08,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816574251] [2020-11-30 02:02:08,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/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 [2020-11-30 02:02:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:02:08,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 02:02:08,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:02:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:02:08,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:02:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:02:08,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796748795] [2020-11-30 02:02:08,787 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 02:02:08,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816574251] [2020-11-30 02:02:08,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [451692950] [2020-11-30 02:02:08,793 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2020-11-30 02:02:08,793 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 02:02:08,794 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 02:02:08,794 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 02:02:08,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 02:02:08,895 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-30 02:02:09,778 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 02:02:10,322 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2020-11-30 02:02:11,545 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-11-30 02:02:12,120 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2020-11-30 02:02:12,723 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-11-30 02:02:13,166 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-11-30 02:02:13,591 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-11-30 02:02:14,806 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 88 [2020-11-30 02:02:15,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-30 02:02:15,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7] total 20 [2020-11-30 02:02:15,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964743907] [2020-11-30 02:02:15,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 02:02:15,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:02:15,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 02:02:15,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2020-11-30 02:02:15,611 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 9 states. [2020-11-30 02:02:16,967 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 125 DAG size of output: 104 [2020-11-30 02:02:17,791 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2020-11-30 02:02:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:02:17,885 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-11-30 02:02:17,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:02:17,888 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2020-11-30 02:02:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:02:17,888 INFO L225 Difference]: With dead ends: 37 [2020-11-30 02:02:17,888 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:02:17,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 67 SyntacticMatches, 11 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2020-11-30 02:02:17,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:02:17,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:02:17,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:02:17,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:02:17,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-11-30 02:02:17,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:02:17,890 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:02:17,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 02:02:17,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:02:17,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:02:18,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:02:18,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:02:19,102 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2020-11-30 02:02:19,798 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 84 [2020-11-30 02:02:20,672 WARN L193 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 88 [2020-11-30 02:02:21,491 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2020-11-30 02:02:22,431 WARN L193 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 108 [2020-11-30 02:02:23,250 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2020-11-30 02:02:24,104 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 88 [2020-11-30 02:02:24,107 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))) [2020-11-30 02:02:24,107 INFO L274 CegarLoopResult]: For program point L35-3(lines 35 73) no Hoare annotation was computed. [2020-11-30 02:02:24,107 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 02:02:24,108 INFO L274 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-11-30 02:02:24,108 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))) [2020-11-30 02:02:24,108 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2020-11-30 02:02:24,108 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))) [2020-11-30 02:02:24,108 INFO L274 CegarLoopResult]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2020-11-30 02:02:24,109 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))) [2020-11-30 02:02:24,109 INFO L274 CegarLoopResult]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2020-11-30 02:02:24,109 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 02:02:24,109 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))) [2020-11-30 02:02:24,109 INFO L274 CegarLoopResult]: For program point L11-8(lines 11 14) no Hoare annotation was computed. [2020-11-30 02:02:24,109 INFO L277 CegarLoopResult]: At program point L11-9(lines 10 16) the Hoare annotation is: true [2020-11-30 02:02:24,109 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 02:02:24,109 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:02:24,110 INFO L274 CegarLoopResult]: For program point L12(lines 12 13) no Hoare annotation was computed. [2020-11-30 02:02:24,110 INFO L274 CegarLoopResult]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2020-11-30 02:02:24,110 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2020-11-30 02:02:24,110 INFO L274 CegarLoopResult]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2020-11-30 02:02:24,110 INFO L274 CegarLoopResult]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2020-11-30 02:02:24,110 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 02:02:24,110 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 02:02:24,110 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))) [2020-11-30 02:02:24,110 INFO L274 CegarLoopResult]: For program point L49-3(lines 49 59) no Hoare annotation was computed. [2020-11-30 02:02:24,110 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:02:24,111 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))) [2020-11-30 02:02:24,111 INFO L274 CegarLoopResult]: For program point L42-3(lines 42 62) no Hoare annotation was computed. [2020-11-30 02:02:24,111 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 02:02:24,111 INFO L274 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-11-30 02:02:24,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,137 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,137 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,137 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,154 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,241 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,241 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,246 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,246 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,248 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,248 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,248 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,248 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,251 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,252 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,253 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,253 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,253 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:02:24 BoogieIcfgContainer [2020-11-30 02:02:24,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:02:24,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:02:24,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:02:24,267 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:02:24,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:46" (3/4) ... [2020-11-30 02:02:24,271 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:02:24,282 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2020-11-30 02:02:24,282 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 02:02:24,283 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 02:02:24,283 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:02:24,313 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) [2020-11-30 02:02:24,313 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) [2020-11-30 02:02:24,314 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 [2020-11-30 02:02:24,314 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 [2020-11-30 02:02:24,315 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 [2020-11-30 02:02:24,315 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 [2020-11-30 02:02:24,316 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 [2020-11-30 02:02:24,336 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1f3c8535-4f06-4218-a70e-a1f3a118985f/bin/utaipan/witness.graphml [2020-11-30 02:02:24,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:02:24,338 INFO L168 Benchmark]: Toolchain (without parser) took 38820.17 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 109.4 MB in the beginning and 105.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 70.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:02:24,338 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:02:24,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.96 ms. Allocated memory is still 138.4 MB. Free memory was 109.1 MB in the beginning and 114.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:02:24,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.55 ms. Allocated memory is still 138.4 MB. Free memory was 113.9 MB in the beginning and 112.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:02:24,340 INFO L168 Benchmark]: Boogie Preprocessor took 50.72 ms. Allocated memory is still 138.4 MB. Free memory was 112.2 MB in the beginning and 111.3 MB in the end (delta: 916.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:02:24,341 INFO L168 Benchmark]: RCFGBuilder took 900.53 ms. Allocated memory is still 138.4 MB. Free memory was 110.9 MB in the beginning and 82.8 MB in the end (delta: 28.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:02:24,341 INFO L168 Benchmark]: TraceAbstraction took 37275.51 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 82.4 MB in the beginning and 109.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 92.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:02:24,342 INFO L168 Benchmark]: Witness Printer took 70.24 ms. Allocated memory is still 205.5 MB. Free memory was 109.8 MB in the beginning and 105.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:02:24,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 430.96 ms. Allocated memory is still 138.4 MB. Free memory was 109.1 MB in the beginning and 114.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.55 ms. Allocated memory is still 138.4 MB. Free memory was 113.9 MB in the beginning and 112.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.72 ms. Allocated memory is still 138.4 MB. Free memory was 112.2 MB in the beginning and 111.3 MB in the end (delta: 916.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 900.53 ms. Allocated memory is still 138.4 MB. Free memory was 110.9 MB in the beginning and 82.8 MB in the end (delta: 28.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 37275.51 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 82.4 MB in the beginning and 109.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 92.1 MB. Max. memory is 16.1 GB. * Witness Printer took 70.24 ms. Allocated memory is still 205.5 MB. Free memory was 109.8 MB in the beginning and 105.6 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 [2020-11-30 02:02:24,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,370 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,372 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,374 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 [2020-11-30 02:02:24,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,381 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 [2020-11-30 02:02:24,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,389 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 [2020-11-30 02:02:24,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,396 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 [2020-11-30 02:02:24,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,404 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 [2020-11-30 02:02:24,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,409 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,409 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,410 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,410 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,410 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,412 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 [2020-11-30 02:02:24,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 02:02:24,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 02:02:24,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 02:02:24,419 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,419 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,419 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 02:02:24,419 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: 31.0s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 242 SDtfs, 940 SDslu, 745 SDs, 0 SdLazy, 1033 SolverSat, 211 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 263 SyntacticMatches, 18 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 16.9s 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, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 673 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.3s 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]: 987, 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]: 217, 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]: 206, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 163, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 59, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME[ms]: 613, 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]: 135, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 59, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 59, 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]: 1, 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...