./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH --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 74ee724e3f951f784979d99a99eb9387abbe4e82f01cf4b5e019c1ec7f3be827 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:57:09,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:57:09,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:57:10,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:57:10,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:57:10,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:57:10,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:57:10,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:57:10,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:57:10,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:57:10,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:57:10,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:57:10,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:57:10,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:57:10,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:57:10,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:57:10,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:57:10,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:57:10,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:57:10,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:57:10,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:57:10,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:57:10,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:57:10,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:57:10,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:57:10,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:57:10,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:57:10,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:57:10,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:57:10,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:57:10,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:57:10,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:57:10,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:57:10,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:57:10,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:57:10,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:57:10,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:57:10,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:57:10,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:57:10,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:57:10,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:57:10,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:57:10,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:57:10,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:57:10,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:57:10,196 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:57:10,197 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:57:10,197 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:57:10,197 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:57:10,197 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:57:10,198 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:57:10,198 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:57:10,199 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:57:10,199 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:57:10,200 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:57:10,200 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:57:10,200 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:57:10,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:57:10,201 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:57:10,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:57:10,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:57:10,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:57:10,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:57:10,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:57:10,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:57:10,203 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:57:10,203 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:57:10,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:57:10,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:57:10,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:57:10,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:57:10,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:57:10,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:57:10,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:57:10,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:57:10,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:57:10,208 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:57:10,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:57:10,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:57:10,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:57:10,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:57:10,209 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_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74ee724e3f951f784979d99a99eb9387abbe4e82f01cf4b5e019c1ec7f3be827 [2021-11-03 03:57:10,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:57:10,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:57:10,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:57:10,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:57:10,565 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:57:10,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c [2021-11-03 03:57:10,667 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/data/2f020d064/0c190dfda7634a2ab389cd7b001d46ac/FLAGcc9c65907 [2021-11-03 03:57:11,256 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:57:11,257 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c [2021-11-03 03:57:11,270 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/data/2f020d064/0c190dfda7634a2ab389cd7b001d46ac/FLAGcc9c65907 [2021-11-03 03:57:11,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/data/2f020d064/0c190dfda7634a2ab389cd7b001d46ac [2021-11-03 03:57:11,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:57:11,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:57:11,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:57:11,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:57:11,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:57:11,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:11,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42eaeaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11, skipping insertion in model container [2021-11-03 03:57:11,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:11,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:57:11,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:57:11,824 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c[520,533] [2021-11-03 03:57:11,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:57:11,858 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:57:11,877 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c[520,533] [2021-11-03 03:57:11,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:57:11,921 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:57:11,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11 WrapperNode [2021-11-03 03:57:11,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:57:11,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:57:11,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:57:11,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:57:11,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:11,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:11,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:57:11,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:57:11,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:57:11,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:57:11,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:11,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:11,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:11,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:12,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:12,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:12,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:12,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:57:12,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:57:12,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:57:12,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:57:12,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (1/1) ... [2021-11-03 03:57:12,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:57:12,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:57:12,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:57:12,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:57:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:57:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:57:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:57:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:57:12,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:57:12,389 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-03 03:57:12,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:57:12 BoogieIcfgContainer [2021-11-03 03:57:12,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:57:12,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:57:12,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:57:12,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:57:12,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:57:11" (1/3) ... [2021-11-03 03:57:12,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230443bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:57:12, skipping insertion in model container [2021-11-03 03:57:12,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:11" (2/3) ... [2021-11-03 03:57:12,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230443bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:57:12, skipping insertion in model container [2021-11-03 03:57:12,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:57:12" (3/3) ... [2021-11-03 03:57:12,401 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound5.c [2021-11-03 03:57:12,407 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:57:12,407 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 03:57:12,461 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:57:12,469 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:57:12,469 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 03:57:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 03:57:12,493 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:12,494 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 03:57:12,495 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:57:12,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:12,501 INFO L85 PathProgramCache]: Analyzing trace with hash 113318109, now seen corresponding path program 1 times [2021-11-03 03:57:12,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:57:12,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935178902] [2021-11-03 03:57:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:12,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:57:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:12,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:57:12,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935178902] [2021-11-03 03:57:12,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935178902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:12,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:12,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 03:57:12,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526594669] [2021-11-03 03:57:12,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:57:12,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:57:12,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:57:12,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:57:12,715 INFO L87 Difference]: Start difference. First operand has 29 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:12,771 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2021-11-03 03:57:12,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:57:12,773 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 03:57:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:12,784 INFO L225 Difference]: With dead ends: 57 [2021-11-03 03:57:12,784 INFO L226 Difference]: Without dead ends: 27 [2021-11-03 03:57:12,792 INFO L786 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 [2021-11-03 03:57:12,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-03 03:57:12,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-03 03:57:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:12,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-11-03 03:57:12,843 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 5 [2021-11-03 03:57:12,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:12,844 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-11-03 03:57:12,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:12,845 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-11-03 03:57:12,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 03:57:12,846 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:12,846 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 03:57:12,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:57:12,848 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:57:12,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:12,855 INFO L85 PathProgramCache]: Analyzing trace with hash 111966592, now seen corresponding path program 1 times [2021-11-03 03:57:12,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:57:12,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244235469] [2021-11-03 03:57:12,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:12,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:57:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:13,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:13,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:57:13,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244235469] [2021-11-03 03:57:13,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244235469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:13,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:13,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:57:13,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499223780] [2021-11-03 03:57:13,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:57:13,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:57:13,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:57:13,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:13,037 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:13,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:13,180 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2021-11-03 03:57:13,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:57:13,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 03:57:13,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:13,182 INFO L225 Difference]: With dead ends: 54 [2021-11-03 03:57:13,182 INFO L226 Difference]: Without dead ends: 50 [2021-11-03 03:57:13,187 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:57:13,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-03 03:57:13,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 37. [2021-11-03 03:57:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 36 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:13,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2021-11-03 03:57:13,197 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 5 [2021-11-03 03:57:13,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:13,198 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2021-11-03 03:57:13,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:13,198 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2021-11-03 03:57:13,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 03:57:13,199 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:13,199 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:13,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 03:57:13,200 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:57:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:13,201 INFO L85 PathProgramCache]: Analyzing trace with hash 225868067, now seen corresponding path program 1 times [2021-11-03 03:57:13,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:57:13,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545394030] [2021-11-03 03:57:13,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:13,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:57:13,240 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 03:57:13,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849160963] [2021-11-03 03:57:13,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:13,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:57:13,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:57:13,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:57:13,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 03:57:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:13,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 03:57:13,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:13,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:13,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:13,638 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:57:13,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545394030] [2021-11-03 03:57:13,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:57:13,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849160963] [2021-11-03 03:57:13,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849160963] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:13,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:13,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:13,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177790930] [2021-11-03 03:57:13,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:57:13,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:57:13,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:57:13,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:57:13,643 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:13,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:13,751 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-11-03 03:57:13,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:57:13,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-03 03:57:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:13,755 INFO L225 Difference]: With dead ends: 49 [2021-11-03 03:57:13,755 INFO L226 Difference]: Without dead ends: 45 [2021-11-03 03:57:13,757 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:57:13,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-03 03:57:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2021-11-03 03:57:13,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.303030303030303) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2021-11-03 03:57:13,766 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 7 [2021-11-03 03:57:13,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:13,767 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-11-03 03:57:13,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2021-11-03 03:57:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 03:57:13,768 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:13,768 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:13,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:13,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:57:13,995 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:57:13,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:13,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1983963802, now seen corresponding path program 1 times [2021-11-03 03:57:13,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:57:13,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120362460] [2021-11-03 03:57:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:13,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:57:14,012 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 03:57:14,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755610620] [2021-11-03 03:57:14,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:14,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:57:14,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:57:14,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:57:14,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 03:57:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:14,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 03:57:14,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:14,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:14,258 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:57:14,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120362460] [2021-11-03 03:57:14,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:57:14,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755610620] [2021-11-03 03:57:14,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755610620] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:14,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:14,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:14,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665256764] [2021-11-03 03:57:14,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:57:14,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:57:14,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:57:14,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:57:14,289 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:16,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:16,995 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2021-11-03 03:57:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 03:57:16,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-03 03:57:16,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:16,998 INFO L225 Difference]: With dead ends: 71 [2021-11-03 03:57:16,998 INFO L226 Difference]: Without dead ends: 58 [2021-11-03 03:57:16,999 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:57:17,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-03 03:57:17,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 47. [2021-11-03 03:57:17,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 46 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:17,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2021-11-03 03:57:17,008 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 9 [2021-11-03 03:57:17,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:17,009 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2021-11-03 03:57:17,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:17,009 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2021-11-03 03:57:17,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 03:57:17,010 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:17,010 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:17,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:17,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:57:17,239 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:57:17,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash 966688274, now seen corresponding path program 1 times [2021-11-03 03:57:17,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:57:17,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130729137] [2021-11-03 03:57:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:17,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:57:17,257 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 03:57:17,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [801501343] [2021-11-03 03:57:17,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:17,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:57:17,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:57:17,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:57:17,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 03:57:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:17,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 03:57:17,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:17,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:17,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:57:17,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:57:17,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130729137] [2021-11-03 03:57:17,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:57:17,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801501343] [2021-11-03 03:57:17,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801501343] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:57:17,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2084019024] [2021-11-03 03:57:17,572 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-11-03 03:57:17,572 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:57:17,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:57:17,590 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:57:17,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:57:17,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,680 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:57:17,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 03:57:17,685 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:57:17,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-03 03:57:17,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-03 03:57:17,729 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 21=[|v_#valid_10|]} [2021-11-03 03:57:17,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-03 03:57:17,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:57:17,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:57:17,771 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:57:17,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:17,834 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:17,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-03 03:57:17,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 03:57:17,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 03:57:17,876 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:57:17,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:17,904 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 03:57:17,912 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:57:17,912 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:136, output treesize:111 [2021-11-03 03:57:17,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:57:17,940 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-03 03:57:17,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-03 03:57:17,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:17,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-11-03 03:57:18,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:18,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-03 03:57:18,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:18,043 INFO L185 QuantifierPusher]: treesize reduction 7, result has 94.5 percent of original size 121 [2021-11-03 03:57:18,057 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.9 percent of original size [2021-11-03 03:57:18,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 03:57:18,080 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-03 03:57:18,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-03 03:57:18,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,218 INFO L180 QuantifierPusher]: treesize reduction 32, result has 74.6 percent of original size [2021-11-03 03:57:18,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 03:57:18,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:18,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-11-03 03:57:18,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:18,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-03 03:57:18,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:18,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:57:18,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:18,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-03 03:57:18,486 INFO L180 QuantifierPusher]: treesize reduction 32, result has 74.6 percent of original size [2021-11-03 03:57:18,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 03:57:18,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:18,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-11-03 03:57:18,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:18,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-03 03:57:18,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:18,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:18,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-11-03 03:57:18,707 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:57:19,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [2084019024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:19,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-11-03 03:57:19,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 3] total 12 [2021-11-03 03:57:19,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551797621] [2021-11-03 03:57:19,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 03:57:19,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:57:19,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 03:57:19,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:57:19,958 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:21,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:21,605 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2021-11-03 03:57:21,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 03:57:21,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-03 03:57:21,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:21,606 INFO L225 Difference]: With dead ends: 47 [2021-11-03 03:57:21,606 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 03:57:21,607 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:57:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 03:57:21,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 03:57:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:21,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 03:57:21,607 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-03 03:57:21,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:21,607 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 03:57:21,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 03:57:21,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 03:57:21,610 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:57:21,611 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:57:21,611 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:57:21,611 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:57:21,611 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:57:21,612 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:57:21,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-03 03:57:21,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:57:21,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 03:57:21,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:21,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:21,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:21,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:21,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:21,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:21,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:57:25,807 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-11-03 03:57:25,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-11-03 03:57:25,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-11-03 03:57:25,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 03:57:25,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-11-03 03:57:25,808 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-11-03 03:57:25,809 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse0 (<= 0 |#t~string4.base|)) (.cse1 (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1)) (.cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse9 (* 2 ULTIMATE.start_main_~a~0)) (.cse3 (<= 0 |#t~string5.base|)) (.cse4 (<= ULTIMATE.start___VERIFIER_assert_~cond 1)) (.cse5 (<= 1 ~counter~0)) (.cse6 (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond|)) (.cse7 (<= ULTIMATE.start_main_~n~0 2147483647)) (.cse8 (<= 0 |#t~string6.base|)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (= |#t~string6.offset| 0)) (.cse12 (<= 0 |#StackHeapBarrier|)) (.cse13 (= 0 |#t~string4.offset|)) (.cse14 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 0 |#t~string5.offset|) (= ULTIMATE.start_main_~t~0 1) .cse5 .cse6 .cse7 .cse8 (= ULTIMATE.start_main_~t~0 (+ .cse9 1)) .cse10 (= ULTIMATE.start_main_~s~0 1) .cse11 (<= 0 (+ ULTIMATE.start_main_~n~0 2147483648)) .cse12 (<= |#t~string5.offset| 0) .cse13 .cse14) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~s~0 (+ .cse9 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) 1)) .cse3 (= |#t~string5.offset| 0) .cse4 .cse5 (= (+ (* 2 ULTIMATE.start_main_~t~0) (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (* 4 ULTIMATE.start_main_~s~0)) .cse6 .cse7 (<= 3 ULTIMATE.start_main_~t~0) .cse8 (<= 1 ULTIMATE.start_main_~n~0) .cse10 .cse11 (<= 0 ULTIMATE.start_main_~a~0) .cse12 .cse13 .cse14))) [2021-11-03 03:57:25,809 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-11-03 03:57:25,810 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse0 (<= 0 |#t~string4.base|)) (.cse2 (<= 0 |#t~string5.base|)) (.cse3 (= |#t~string5.offset| 0)) (.cse4 (<= 1 ~counter~0)) (.cse5 (<= ULTIMATE.start_main_~n~0 2147483647)) (.cse6 (<= 0 |#t~string6.base|)) (.cse1 (* 2 ULTIMATE.start_main_~a~0)) (.cse7 (= |#NULL.offset| 0)) (.cse8 (= |#t~string6.offset| 0)) (.cse9 (<= 0 |#StackHeapBarrier|)) (.cse10 (= 0 |#t~string4.offset|)) (.cse11 (= |#NULL.base| 0))) (or (and .cse0 (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~s~0 (+ .cse1 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) 1)) .cse2 .cse3 (<= ULTIMATE.start___VERIFIER_assert_~cond 1) .cse4 (= (+ (* 2 ULTIMATE.start_main_~t~0) (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (* 4 ULTIMATE.start_main_~s~0)) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond|) .cse5 (<= 3 ULTIMATE.start_main_~t~0) .cse6 (<= 1 ULTIMATE.start_main_~n~0) .cse7 .cse8 (<= 0 ULTIMATE.start_main_~a~0) .cse9 .cse10 .cse11) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) .cse2 .cse3 (= ULTIMATE.start_main_~t~0 1) .cse4 .cse5 .cse6 (= ULTIMATE.start_main_~t~0 (+ .cse1 1)) .cse7 (= ULTIMATE.start_main_~s~0 1) .cse8 (<= 0 (+ ULTIMATE.start_main_~n~0 2147483648)) .cse9 .cse10 .cse11))) [2021-11-03 03:57:25,810 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-11-03 03:57:25,810 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 36 37) the Hoare annotation is: (let ((.cse0 (<= 0 |#t~string4.base|)) (.cse2 (<= 0 |#t~string5.base|)) (.cse3 (= |#t~string5.offset| 0)) (.cse4 (<= 1 ~counter~0)) (.cse5 (= (+ (* 2 ULTIMATE.start_main_~t~0) (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (* 4 ULTIMATE.start_main_~s~0))) (.cse6 (<= ULTIMATE.start_main_~n~0 2147483647)) (.cse7 (<= 0 |#t~string6.base|)) (.cse1 (* 2 ULTIMATE.start_main_~a~0)) (.cse8 (= |#NULL.offset| 0)) (.cse9 (= |#t~string6.offset| 0)) (.cse10 (<= 0 |#StackHeapBarrier|)) (.cse11 (= 0 |#t~string4.offset|)) (.cse12 (= |#NULL.base| 0))) (or (and .cse0 (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~s~0 (+ .cse1 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) 1)) .cse2 .cse3 (<= ULTIMATE.start___VERIFIER_assert_~cond 1) .cse4 .cse5 (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond|) .cse6 (<= 3 ULTIMATE.start_main_~t~0) .cse7 (<= 1 ULTIMATE.start_main_~n~0) .cse8 .cse9 (<= 0 ULTIMATE.start_main_~a~0) .cse10 .cse11 .cse12) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~t~0 (+ .cse1 1)) .cse8 (= ULTIMATE.start_main_~s~0 1) .cse9 (<= 1 ULTIMATE.start_main_~t~0) (<= 0 (+ ULTIMATE.start_main_~n~0 2147483648)) .cse10 .cse11 .cse12))) [2021-11-03 03:57:25,810 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-11-03 03:57:25,811 INFO L853 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~t~0 1) (= ULTIMATE.start_main_~s~0 1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and (<= 0 |#t~string4.base|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~s~0 (+ (* 2 ULTIMATE.start_main_~a~0) (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) 1)) (<= 0 |#t~string5.base|) (= |#t~string5.offset| 0) (<= ULTIMATE.start___VERIFIER_assert_~cond 1) (<= 1 ~counter~0) (= (+ (* 2 ULTIMATE.start_main_~t~0) (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (* 4 ULTIMATE.start_main_~s~0)) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond|) (<= ULTIMATE.start_main_~n~0 2147483647) (<= 3 ULTIMATE.start_main_~t~0) (<= 0 |#t~string6.base|) (<= 1 ULTIMATE.start_main_~n~0) (= |#NULL.offset| 0) (= |#t~string6.offset| 0) (<= 0 ULTIMATE.start_main_~a~0) (<= 0 |#StackHeapBarrier|) (= 0 |#t~string4.offset|) (= |#NULL.base| 0))) [2021-11-03 03:57:25,811 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 03:57:25,811 INFO L857 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-11-03 03:57:25,811 INFO L853 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: (and (= (+ (* 2 ULTIMATE.start_main_~t~0) (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (* 4 ULTIMATE.start_main_~s~0)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-11-03 03:57:25,812 INFO L857 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-11-03 03:57:25,812 INFO L860 garLoopResultBuilder]: At program point L12-17(lines 11 17) the Hoare annotation is: true [2021-11-03 03:57:25,812 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-11-03 03:57:25,812 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-11-03 03:57:25,812 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-11-03 03:57:25,812 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-11-03 03:57:25,813 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-11-03 03:57:25,813 INFO L857 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-11-03 03:57:25,813 INFO L857 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-11-03 03:57:25,813 INFO L857 garLoopResultBuilder]: For program point L30-1(lines 30 42) no Hoare annotation was computed. [2021-11-03 03:57:25,813 INFO L853 garLoopResultBuilder]: At program point L30-3(lines 30 42) the Hoare annotation is: (let ((.cse0 (<= 0 |#t~string4.base|)) (.cse2 (<= 0 |#t~string5.base|)) (.cse3 (= |#t~string5.offset| 0)) (.cse4 (<= ULTIMATE.start_main_~n~0 2147483647)) (.cse5 (<= 0 |#t~string6.base|)) (.cse1 (* 2 ULTIMATE.start_main_~a~0)) (.cse6 (= |#NULL.offset| 0)) (.cse7 (= |#t~string6.offset| 0)) (.cse8 (<= 0 |#StackHeapBarrier|)) (.cse9 (= 0 |#t~string4.offset|)) (.cse10 (= |#NULL.base| 0))) (or (and .cse0 (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~s~0 (+ .cse1 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) 1)) .cse2 .cse3 (<= ULTIMATE.start___VERIFIER_assert_~cond 1) (<= 1 ~counter~0) (= (+ (* 2 ULTIMATE.start_main_~t~0) (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (* 4 ULTIMATE.start_main_~s~0)) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond|) .cse4 (<= 3 ULTIMATE.start_main_~t~0) .cse5 (<= 1 ULTIMATE.start_main_~n~0) .cse6 .cse7 (<= 0 ULTIMATE.start_main_~a~0) .cse8 .cse9 .cse10) (and .cse0 (<= 0 ~counter~0) .cse2 .cse3 (= ULTIMATE.start_main_~t~0 1) (<= ~counter~0 0) .cse4 .cse5 (= ULTIMATE.start_main_~t~0 (+ .cse1 1)) .cse6 (= ULTIMATE.start_main_~s~0 1) .cse7 (<= 0 (+ ULTIMATE.start_main_~n~0 2147483648)) .cse8 .cse9 .cse10))) [2021-11-03 03:57:25,814 INFO L857 garLoopResultBuilder]: For program point L30-4(lines 30 42) no Hoare annotation was computed. [2021-11-03 03:57:25,814 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-11-03 03:57:25,817 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-03 03:57:25,819 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:57:25,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:57:25 BoogieIcfgContainer [2021-11-03 03:57:25,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:57:25,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:57:25,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:57:25,852 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:57:25,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:57:12" (3/4) ... [2021-11-03 03:57:25,856 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 03:57:25,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-03 03:57:25,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 03:57:25,868 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-03 03:57:25,868 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 03:57:25,894 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) || (((((((((((((((0 <= "0" && 0 <= counter) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && t == 1) && counter <= 0) && n <= 2147483647) && 0 <= "reach_error") && t == 2 * a + 1) && #NULL == 0) && s == 1) && "reach_error" == 0) && 0 <= n + 2147483648) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) [2021-11-03 03:57:25,895 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((a == 0 && t == 1) && s == 1) && !(0 == cond)) || (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) [2021-11-03 03:57:25,895 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && 0 <= "sqrt1-ll.c") && cond <= 1) && 0 <= "sqrt1-ll.c") && t == 1) && 1 <= counter) && 1 <= \old(cond)) && n <= 2147483647) && 0 <= "reach_error") && t == 2 * a + 1) && #NULL == 0) && s == 1) && "reach_error" == 0) && 0 <= n + 2147483648) && 0 <= unknown-#StackHeapBarrier-unknown) && "sqrt1-ll.c" <= 0) && 0 == "0") && #NULL == 0) || (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) [2021-11-03 03:57:25,895 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) || ((((((((((((((((0 <= "0" && \old(cond) == cond) && \old(cond) == 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && t == 1) && 1 <= counter) && n <= 2147483647) && 0 <= "reach_error") && t == 2 * a + 1) && #NULL == 0) && s == 1) && "reach_error" == 0) && 0 <= n + 2147483648) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) [2021-11-03 03:57:25,896 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) || (((((((((((((((((0 <= "0" && \old(cond) == cond) && \old(cond) == 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && n <= 2147483647) && 0 <= "reach_error") && t == 2 * a + 1) && #NULL == 0) && s == 1) && "reach_error" == 0) && 1 <= t) && 0 <= n + 2147483648) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) [2021-11-03 03:57:25,908 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 03:57:25,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:57:25,910 INFO L168 Benchmark]: Toolchain (without parser) took 14317.46 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 74.5 MB in the beginning and 57.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. [2021-11-03 03:57:25,910 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 104.9 MB. Free memory is still 59.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:57:25,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.24 ms. Allocated memory is still 104.9 MB. Free memory was 74.2 MB in the beginning and 79.9 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:57:25,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.00 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 78.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:57:25,912 INFO L168 Benchmark]: Boogie Preprocessor took 52.34 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 77.2 MB in the end (delta: 999.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:57:25,912 INFO L168 Benchmark]: RCFGBuilder took 363.39 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 65.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:57:25,913 INFO L168 Benchmark]: TraceAbstraction took 13457.04 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 65.6 MB in the beginning and 60.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:57:25,913 INFO L168 Benchmark]: Witness Printer took 57.28 ms. Allocated memory is still 136.3 MB. Free memory was 60.5 MB in the beginning and 57.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:57:25,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 104.9 MB. Free memory is still 59.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.24 ms. Allocated memory is still 104.9 MB. Free memory was 74.2 MB in the beginning and 79.9 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.00 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 78.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.34 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 77.2 MB in the end (delta: 999.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 363.39 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 65.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13457.04 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 65.6 MB in the beginning and 60.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.1 GB. * Witness Printer took 57.28 ms. Allocated memory is still 136.3 MB. Free memory was 60.5 MB in the beginning and 57.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 111 SDslu, 101 SDs, 0 SdLazy, 181 SolverSat, 63 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 22 NumberOfFragments, 672 HoareAnnotationTreeSize, 7 FomulaSimplifications, 357 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 186 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 381 SizeOfPredicates, 9 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 2/6 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]: 1135, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 10, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 27, TOOLS_POST_TIME[ms]: 574, 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: 27, TOOLS_QUANTIFIERELIM_TIME[ms]: 556, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 249, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 42, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME[ms]: 155, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 111, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 182, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 15, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 526, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 526, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, 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]: 2, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 25, DAG_COMPRESSION_PROCESSED_NODES: 101, DAG_COMPRESSION_RETAINED_NODES: 37, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && 0 <= "sqrt1-ll.c") && cond <= 1) && 0 <= "sqrt1-ll.c") && t == 1) && 1 <= counter) && 1 <= \old(cond)) && n <= 2147483647) && 0 <= "reach_error") && t == 2 * a + 1) && #NULL == 0) && s == 1) && "reach_error" == 0) && 0 <= n + 2147483648) && 0 <= unknown-#StackHeapBarrier-unknown) && "sqrt1-ll.c" <= 0) && 0 == "0") && #NULL == 0) || (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) || (((((((((((((((((0 <= "0" && \old(cond) == cond) && \old(cond) == 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && n <= 2147483647) && 0 <= "reach_error") && t == 2 * a + 1) && #NULL == 0) && s == 1) && "reach_error" == 0) && 1 <= t) && 0 <= n + 2147483648) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((a == 0 && t == 1) && s == 1) && !(0 == cond)) || (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 2 * t + t * t + 1 == 4 * s && !(0 == cond) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) || ((((((((((((((((0 <= "0" && \old(cond) == cond) && \old(cond) == 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && t == 1) && 1 <= counter) && n <= 2147483647) && 0 <= "reach_error") && t == 2 * a + 1) && #NULL == 0) && s == 1) && "reach_error" == 0) && 0 <= n + 2147483648) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((((((((((((0 <= "0" && \old(cond) <= 1) && 1 <= cond) && s == 2 * a + a * a + 1) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && cond <= 1) && 1 <= counter) && 2 * t + t * t + 1 == 4 * s) && 1 <= \old(cond)) && n <= 2147483647) && 3 <= t) && 0 <= "reach_error") && 1 <= n) && #NULL == 0) && "reach_error" == 0) && 0 <= a) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) || (((((((((((((((0 <= "0" && 0 <= counter) && 0 <= "sqrt1-ll.c") && "sqrt1-ll.c" == 0) && t == 1) && counter <= 0) && n <= 2147483647) && 0 <= "reach_error") && t == 2 * a + 1) && #NULL == 0) && s == 1) && "reach_error" == 0) && 0 <= n + 2147483648) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 == "0") && #NULL == 0) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-03 03:57:25,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f1c429-ad51-45f7-8228-1e0fce815d3b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE