./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG --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 d6c389695f28ab23288d12eab23e55426fe9ec0f0b8fe9723cca18e00c3db8b7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:55:50,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:55:50,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:55:50,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:55:50,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:55:50,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:55:50,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:55:50,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:55:51,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:55:51,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:55:51,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:55:51,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:55:51,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:55:51,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:55:51,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:55:51,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:55:51,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:55:51,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:55:51,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:55:51,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:55:51,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:55:51,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:55:51,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:55:51,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:55:51,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:55:51,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:55:51,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:55:51,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:55:51,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:55:51,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:55:51,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:55:51,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:55:51,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:55:51,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:55:51,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:55:51,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:55:51,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:55:51,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:55:51,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:55:51,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:55:51,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:55:51,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:55:51,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:55:51,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:55:51,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:55:51,118 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:55:51,119 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:55:51,119 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:55:51,119 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:55:51,119 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:55:51,125 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:55:51,126 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:55:51,127 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:55:51,127 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:55:51,127 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:55:51,128 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:55:51,128 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:55:51,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:55:51,129 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:55:51,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:55:51,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:55:51,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:55:51,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:55:51,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:55:51,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:55:51,130 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:55:51,130 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:55:51,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:55:51,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:55:51,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:55:51,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:55:51,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:55:51,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:55:51,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:55:51,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:55:51,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:55:51,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:55:51,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:55:51,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:55:51,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:55:51,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:55:51,135 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_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6c389695f28ab23288d12eab23e55426fe9ec0f0b8fe9723cca18e00c3db8b7 [2021-10-29 05:55:51,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:55:51,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:55:51,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:55:51,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:55:51,446 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:55:51,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2021-10-29 05:55:51,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/data/a1df8d65c/28bbecd2e898454197b8432b1a3a3d08/FLAGc2587d240 [2021-10-29 05:55:51,963 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:55:51,963 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2021-10-29 05:55:51,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/data/a1df8d65c/28bbecd2e898454197b8432b1a3a3d08/FLAGc2587d240 [2021-10-29 05:55:52,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/data/a1df8d65c/28bbecd2e898454197b8432b1a3a3d08 [2021-10-29 05:55:52,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:55:52,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:55:52,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:55:52,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:55:52,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:55:52,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7ee2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52, skipping insertion in model container [2021-10-29 05:55:52,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:55:52,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:55:52,565 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_c481d8ff-5915-401a-8bbc-651e8a5dc82a/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2021-10-29 05:55:52,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:55:52,593 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:55:52,605 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_c481d8ff-5915-401a-8bbc-651e8a5dc82a/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2021-10-29 05:55:52,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:55:52,626 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:55:52,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52 WrapperNode [2021-10-29 05:55:52,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:55:52,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:55:52,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:55:52,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:55:52,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:55:52,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:55:52,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:55:52,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:55:52,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:55:52,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:55:52,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:55:52,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:55:52,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (1/1) ... [2021-10-29 05:55:52,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:55:52,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:55:52,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:55:52,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:55:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:55:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:55:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:55:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:55:53,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:55:53,044 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-29 05:55:53,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:55:53 BoogieIcfgContainer [2021-10-29 05:55:53,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:55:53,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:55:53,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:55:53,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:55:53,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:55:52" (1/3) ... [2021-10-29 05:55:53,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd6fc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:55:53, skipping insertion in model container [2021-10-29 05:55:53,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:52" (2/3) ... [2021-10-29 05:55:53,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd6fc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:55:53, skipping insertion in model container [2021-10-29 05:55:53,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:55:53" (3/3) ... [2021-10-29 05:55:53,057 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound2.c [2021-10-29 05:55:53,062 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:55:53,063 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-29 05:55:53,144 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:55:53,151 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 [2021-10-29 05:55:53,152 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-29 05:55:53,166 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) [2021-10-29 05:55:53,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:55:53,171 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:53,172 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:55:53,173 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)] === [2021-10-29 05:55:53,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:53,179 INFO L85 PathProgramCache]: Analyzing trace with hash 113318109, now seen corresponding path program 1 times [2021-10-29 05:55:53,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:53,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805601406] [2021-10-29 05:55:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:53,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:53,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:53,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:53,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805601406] [2021-10-29 05:55:53,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805601406] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:53,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:53,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:55:53,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670702030] [2021-10-29 05:55:53,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:55:53,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:55:53,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:55:53,425 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) [2021-10-29 05:55:53,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:53,449 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2021-10-29 05:55:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:55:53,451 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 [2021-10-29 05:55:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:53,462 INFO L225 Difference]: With dead ends: 57 [2021-10-29 05:55:53,462 INFO L226 Difference]: Without dead ends: 27 [2021-10-29 05:55:53,470 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 [2021-10-29 05:55:53,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-29 05:55:53,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-29 05:55:53,504 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) [2021-10-29 05:55:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-29 05:55:53,507 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 5 [2021-10-29 05:55:53,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:53,508 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-29 05:55:53,508 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) [2021-10-29 05:55:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-29 05:55:53,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:55:53,509 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:53,509 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:55:53,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:55:53,510 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)] === [2021-10-29 05:55:53,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:53,511 INFO L85 PathProgramCache]: Analyzing trace with hash 111966592, now seen corresponding path program 1 times [2021-10-29 05:55:53,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:53,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337742350] [2021-10-29 05:55:53,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:53,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:53,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:53,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337742350] [2021-10-29 05:55:53,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337742350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:53,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:53,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:55:53,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405436791] [2021-10-29 05:55:53,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:55:53,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:53,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:55:53,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:55:53,611 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) [2021-10-29 05:55:53,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:53,743 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2021-10-29 05:55:53,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:55:53,744 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 [2021-10-29 05:55:53,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:53,746 INFO L225 Difference]: With dead ends: 54 [2021-10-29 05:55:53,748 INFO L226 Difference]: Without dead ends: 50 [2021-10-29 05:55:53,749 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 [2021-10-29 05:55:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-29 05:55:53,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 37. [2021-10-29 05:55:53,760 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) [2021-10-29 05:55:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2021-10-29 05:55:53,763 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 5 [2021-10-29 05:55:53,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:53,763 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2021-10-29 05:55:53,763 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) [2021-10-29 05:55:53,764 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2021-10-29 05:55:53,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:55:53,764 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:53,764 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:55:53,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:55:53,765 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)] === [2021-10-29 05:55:53,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:53,766 INFO L85 PathProgramCache]: Analyzing trace with hash 225868067, now seen corresponding path program 1 times [2021-10-29 05:55:53,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:53,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78312590] [2021-10-29 05:55:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:53,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:53,788 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:55:53,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305185475] [2021-10-29 05:55:53,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:53,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:55:53,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:55:53,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:55:53,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:55:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:53,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:55:53,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:55:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:53,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:55:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:54,074 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:54,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78312590] [2021-10-29 05:55:54,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:55:54,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305185475] [2021-10-29 05:55:54,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305185475] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:54,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:54,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:55:54,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068372938] [2021-10-29 05:55:54,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:55:54,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:54,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:55:54,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:55:54,078 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) [2021-10-29 05:55:54,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:54,159 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-10-29 05:55:54,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:55:54,160 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 [2021-10-29 05:55:54,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:54,161 INFO L225 Difference]: With dead ends: 49 [2021-10-29 05:55:54,161 INFO L226 Difference]: Without dead ends: 45 [2021-10-29 05:55:54,162 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 [2021-10-29 05:55:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-29 05:55:54,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2021-10-29 05:55:54,168 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) [2021-10-29 05:55:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2021-10-29 05:55:54,169 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 7 [2021-10-29 05:55:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:54,169 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-10-29 05:55:54,169 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) [2021-10-29 05:55:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2021-10-29 05:55:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:55:54,170 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:54,170 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:55:54,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:55:54,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:55:54,387 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)] === [2021-10-29 05:55:54,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:54,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1983963802, now seen corresponding path program 1 times [2021-10-29 05:55:54,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:54,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305742186] [2021-10-29 05:55:54,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:54,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:54,409 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:55:54,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564844043] [2021-10-29 05:55:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:54,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:55:54,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:55:54,427 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:55:54,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 05:55:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:54,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:55:54,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:55:54,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:54,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:55:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:54,709 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:54,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305742186] [2021-10-29 05:55:54,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:55:54,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564844043] [2021-10-29 05:55:54,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564844043] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:54,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:54,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:55:54,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848445084] [2021-10-29 05:55:54,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:55:54,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:54,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:55:54,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:55:54,716 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) [2021-10-29 05:56:00,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:56:00,178 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2021-10-29 05:56:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:56:00,179 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 [2021-10-29 05:56:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:56:00,180 INFO L225 Difference]: With dead ends: 71 [2021-10-29 05:56:00,181 INFO L226 Difference]: Without dead ends: 58 [2021-10-29 05:56:00,181 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 [2021-10-29 05:56:00,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-29 05:56:00,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 47. [2021-10-29 05:56:00,189 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) [2021-10-29 05:56:00,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2021-10-29 05:56:00,190 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 9 [2021-10-29 05:56:00,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:56:00,190 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2021-10-29 05:56:00,191 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) [2021-10-29 05:56:00,191 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2021-10-29 05:56:00,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:56:00,192 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:56:00,192 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:56:00,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:56:00,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:56:00,419 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)] === [2021-10-29 05:56:00,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:56:00,420 INFO L85 PathProgramCache]: Analyzing trace with hash 966688274, now seen corresponding path program 1 times [2021-10-29 05:56:00,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:56:00,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354075674] [2021-10-29 05:56:00,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:56:00,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:56:00,434 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:56:00,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496889539] [2021-10-29 05:56:00,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:56:00,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:56:00,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:56:00,436 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:56:00,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-29 05:56:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:56:00,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 05:56:00,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:56:00,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:56:00,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:56:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 05:56:00,743 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:56:00,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354075674] [2021-10-29 05:56:00,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:56:00,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496889539] [2021-10-29 05:56:00,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496889539] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:56:00,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [755949472] [2021-10-29 05:56:00,770 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-10-29 05:56:00,771 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:56:00,781 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:56:00,787 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:56:00,789 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:56:00,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:00,856 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:56:00,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:00,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 05:56:00,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:56:00,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:00,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 05:56:00,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-10-29 05:56:00,906 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 21=[|v_#valid_10|]} [2021-10-29 05:56:00,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,936 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 [2021-10-29 05:56:00,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:00,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:56:00,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:00,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:56:00,939 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:56:00,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:00,971 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:00,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:56:00,995 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 [2021-10-29 05:56:00,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:00,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:56:00,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:56:01,000 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:56:01,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,020 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-10-29 05:56:01,025 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:56:01,026 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:136, output treesize:111 [2021-10-29 05:56:01,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-29 05:56:01,051 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-10-29 05:56:01,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-29 05:56:01,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-10-29 05:56:01,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-10-29 05:56:01,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,125 INFO L185 QuantifierPusher]: treesize reduction 7, result has 94.5 percent of original size 121 [2021-10-29 05:56:01,135 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.9 percent of original size [2021-10-29 05:56:01,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-10-29 05:56:01,152 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-10-29 05:56:01,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-10-29 05:56:01,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,300 INFO L180 QuantifierPusher]: treesize reduction 32, result has 74.6 percent of original size [2021-10-29 05:56:01,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-29 05:56:01,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-10-29 05:56:01,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-10-29 05:56:01,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-10-29 05:56:01,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-10-29 05:56:01,428 INFO L180 QuantifierPusher]: treesize reduction 32, result has 74.6 percent of original size [2021-10-29 05:56:01,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-29 05:56:01,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-10-29 05:56:01,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-10-29 05:56:01,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:01,626 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:56:01,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-10-29 05:56:01,634 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:56:02,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [755949472] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:56:02,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:56:02,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 3] total 12 [2021-10-29 05:56:02,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433310679] [2021-10-29 05:56:02,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 05:56:02,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:56:02,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 05:56:02,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:56:02,966 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) [2021-10-29 05:56:04,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:56:04,988 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2021-10-29 05:56:04,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 05:56:04,988 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 [2021-10-29 05:56:04,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:56:04,989 INFO L225 Difference]: With dead ends: 47 [2021-10-29 05:56:04,989 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:56:04,990 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-10-29 05:56:04,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:56:04,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:56:04,990 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) [2021-10-29 05:56:04,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:56:04,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-29 05:56:04,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:56:04,991 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:56:04,991 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) [2021-10-29 05:56:04,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:56:04,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:56:04,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:56:04,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:56:04,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:56:04,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:56:04,995 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:56:04,995 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:56:05,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:56:05,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:56:05,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:56:05,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:05,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:05,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:05,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:05,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:05,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:05,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:56:09,151 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-29 05:56:09,152 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-29 05:56:09,152 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-29 05:56:09,152 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:56:09,152 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-29 05:56:09,153 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-29 05:56:09,153 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))) [2021-10-29 05:56:09,153 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-29 05:56:09,154 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))) [2021-10-29 05:56:09,154 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-29 05:56:09,154 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))) [2021-10-29 05:56:09,154 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-29 05:56:09,155 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))) [2021-10-29 05:56:09,155 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:56:09,155 INFO L857 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-29 05:56:09,155 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))) [2021-10-29 05:56:09,155 INFO L857 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-29 05:56:09,156 INFO L860 garLoopResultBuilder]: At program point L12-17(lines 11 17) the Hoare annotation is: true [2021-10-29 05:56:09,156 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-29 05:56:09,156 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-29 05:56:09,156 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-29 05:56:09,156 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-29 05:56:09,157 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-29 05:56:09,157 INFO L857 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-29 05:56:09,157 INFO L857 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-29 05:56:09,157 INFO L857 garLoopResultBuilder]: For program point L30-1(lines 30 42) no Hoare annotation was computed. [2021-10-29 05:56:09,157 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))) [2021-10-29 05:56:09,157 INFO L857 garLoopResultBuilder]: For program point L30-4(lines 30 42) no Hoare annotation was computed. [2021-10-29 05:56:09,158 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-29 05:56:09,161 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-29 05:56:09,163 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:56:09,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:56:09 BoogieIcfgContainer [2021-10-29 05:56:09,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:56:09,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:56:09,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:56:09,212 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:56:09,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:55:53" (3/4) ... [2021-10-29 05:56:09,216 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:56:09,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-29 05:56:09,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:56:09,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 05:56:09,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:56:09,257 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) [2021-10-29 05:56:09,258 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) [2021-10-29 05:56:09,258 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) [2021-10-29 05:56:09,259 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) [2021-10-29 05:56:09,259 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) [2021-10-29 05:56:09,272 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:56:09,272 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:56:09,273 INFO L168 Benchmark]: Toolchain (without parser) took 16901.57 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 66.9 MB in the beginning and 81.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:56:09,274 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:56:09,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.35 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 66.9 MB in the beginning and 94.8 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:56:09,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.44 ms. Allocated memory is still 119.5 MB. Free memory was 94.8 MB in the beginning and 93.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:56:09,280 INFO L168 Benchmark]: Boogie Preprocessor took 22.72 ms. Allocated memory is still 119.5 MB. Free memory was 93.5 MB in the beginning and 92.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:56:09,280 INFO L168 Benchmark]: RCFGBuilder took 359.56 ms. Allocated memory is still 119.5 MB. Free memory was 92.0 MB in the beginning and 80.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:56:09,281 INFO L168 Benchmark]: TraceAbstraction took 16161.70 ms. Allocated memory is still 119.5 MB. Free memory was 80.3 MB in the beginning and 84.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:56:09,281 INFO L168 Benchmark]: Witness Printer took 60.72 ms. Allocated memory is still 119.5 MB. Free memory was 84.6 MB in the beginning and 81.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:56:09,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.35 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 66.9 MB in the beginning and 94.8 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.44 ms. Allocated memory is still 119.5 MB. Free memory was 94.8 MB in the beginning and 93.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.72 ms. Allocated memory is still 119.5 MB. Free memory was 93.5 MB in the beginning and 92.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 359.56 ms. Allocated memory is still 119.5 MB. Free memory was 92.0 MB in the beginning and 80.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16161.70 ms. Allocated memory is still 119.5 MB. Free memory was 80.3 MB in the beginning and 84.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB. * Witness Printer took 60.72 ms. Allocated memory is still 119.5 MB. Free memory was 84.6 MB in the beginning and 81.5 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: 16.0s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, 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, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s 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, 3.8s 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]: 865, 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]: 461, 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]: 446, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 181, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 42, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME[ms]: 144, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 122, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 38, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 20, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 357, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 357, 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]: 3, DAG_COMPRESSION_TIME[ms]: 24, 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! [2021-10-29 05:56:09,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c481d8ff-5915-401a-8bbc-651e8a5dc82a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...