./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 17cc258da1cb66252ff2bd4ba7b092436c9abc69 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:31:35,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:31:35,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:31:35,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:31:35,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:31:35,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:31:35,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:31:35,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:31:35,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:31:35,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:31:35,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:31:35,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:31:35,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:31:35,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:31:35,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:31:35,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:31:35,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:31:35,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:31:35,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:31:35,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:31:35,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:31:35,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:31:35,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:31:35,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:31:35,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:31:35,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:31:35,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:31:35,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:31:35,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:31:35,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:31:35,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:31:35,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:31:35,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:31:35,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:31:35,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:31:35,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:31:35,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:31:35,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:31:35,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:31:35,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:31:35,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:31:35,136 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:31:35,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:31:35,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:31:35,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:31:35,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:31:35,163 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:31:35,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:31:35,163 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:31:35,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:31:35,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:31:35,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:31:35,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:31:35,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:31:35,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:31:35,165 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:31:35,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:31:35,165 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:31:35,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:31:35,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:31:35,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:31:35,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:31:35,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:31:35,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:31:35,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:31:35,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:31:35,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:31:35,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:31:35,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:31:35,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:31:35,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17cc258da1cb66252ff2bd4ba7b092436c9abc69 [2021-10-11 00:31:35,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:31:35,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:31:35,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:31:35,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:31:35,477 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:31:35,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c [2021-10-11 00:31:35,566 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/data/f3e7ae40f/90f8a588aa17490cb8efdf01434d3899/FLAG2479deb4b [2021-10-11 00:31:36,002 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:31:36,003 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c [2021-10-11 00:31:36,010 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/data/f3e7ae40f/90f8a588aa17490cb8efdf01434d3899/FLAG2479deb4b [2021-10-11 00:31:36,413 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/data/f3e7ae40f/90f8a588aa17490cb8efdf01434d3899 [2021-10-11 00:31:36,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:31:36,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:31:36,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:36,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:31:36,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:31:36,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8876a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36, skipping insertion in model container [2021-10-11 00:31:36,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:31:36,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:31:36,623 WARN L226 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_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c[525,538] [2021-10-11 00:31:36,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:36,647 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:31:36,660 WARN L226 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_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c[525,538] [2021-10-11 00:31:36,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:36,680 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:31:36,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36 WrapperNode [2021-10-11 00:31:36,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:36,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:36,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:31:36,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:31:36,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:36,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:31:36,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:31:36,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:31:36,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... [2021-10-11 00:31:36,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:31:36,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:31:36,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:31:36,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:31:36,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:31:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:31:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:31:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:31:36,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:31:37,056 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:31:37,056 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-11 00:31:37,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:37 BoogieIcfgContainer [2021-10-11 00:31:37,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:31:37,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:31:37,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:31:37,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:31:37,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:31:36" (1/3) ... [2021-10-11 00:31:37,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd544bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:31:37, skipping insertion in model container [2021-10-11 00:31:37,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:36" (2/3) ... [2021-10-11 00:31:37,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd544bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:31:37, skipping insertion in model container [2021-10-11 00:31:37,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:37" (3/3) ... [2021-10-11 00:31:37,069 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound5.c [2021-10-11 00:31:37,085 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:31:37,089 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:31:37,103 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:31:37,146 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:31:37,153 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:31:37,153 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:31:37,154 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:31:37,154 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:31:37,154 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:31:37,154 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:31:37,154 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:31:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2021-10-11 00:31:37,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:31:37,181 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:37,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:37,183 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:37,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:37,191 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2021-10-11 00:31:37,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:37,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668384016] [2021-10-11 00:31:37,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:37,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668384016] [2021-10-11 00:31:37,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:37,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:31:37,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112518265] [2021-10-11 00:31:37,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:31:37,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:37,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:31:37,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:31:37,436 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2021-10-11 00:31:37,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:37,449 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2021-10-11 00:31:37,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:31:37,450 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 00:31:37,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:37,456 INFO L225 Difference]: With dead ends: 35 [2021-10-11 00:31:37,456 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 00:31:37,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:31:37,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 00:31:37,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-11 00:31:37,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 00:31:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-10-11 00:31:37,491 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2021-10-11 00:31:37,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:37,491 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-10-11 00:31:37,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:31:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-10-11 00:31:37,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:31:37,492 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:37,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:37,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:31:37,493 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:37,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:37,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2021-10-11 00:31:37,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:37,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961111746] [2021-10-11 00:31:37,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:37,513 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:31:37,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1622174181] [2021-10-11 00:31:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:37,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 00:31:37,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:37,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:37,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961111746] [2021-10-11 00:31:37,823 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:31:37,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622174181] [2021-10-11 00:31:37,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:37,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:31:37,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166258676] [2021-10-11 00:31:37,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:31:37,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:37,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:31:37,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:31:37,827 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2021-10-11 00:31:37,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:37,927 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2021-10-11 00:31:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:31:37,928 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2021-10-11 00:31:37,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:37,928 INFO L225 Difference]: With dead ends: 25 [2021-10-11 00:31:37,929 INFO L226 Difference]: Without dead ends: 19 [2021-10-11 00:31:37,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:31:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-11 00:31:37,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-11 00:31:37,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 00:31:37,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-11 00:31:37,935 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2021-10-11 00:31:37,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:37,935 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-11 00:31:37,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:31:37,936 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-11 00:31:37,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:31:37,936 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:37,936 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:38,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 00:31:38,161 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:38,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:38,162 INFO L82 PathProgramCache]: Analyzing trace with hash 636965506, now seen corresponding path program 1 times [2021-10-11 00:31:38,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:38,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108251734] [2021-10-11 00:31:38,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:38,196 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:31:38,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379552108] [2021-10-11 00:31:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:38,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-11 00:31:38,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:38,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108251734] [2021-10-11 00:31:38,441 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:31:38,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379552108] [2021-10-11 00:31:38,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:31:38,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-11 00:31:38,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705083675] [2021-10-11 00:31:38,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:31:38,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:38,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:31:38,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:31:38,450 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 7 states. [2021-10-11 00:31:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:38,614 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-10-11 00:31:38,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:31:38,615 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2021-10-11 00:31:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:38,616 INFO L225 Difference]: With dead ends: 28 [2021-10-11 00:31:38,617 INFO L226 Difference]: Without dead ends: 22 [2021-10-11 00:31:38,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:31:38,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-11 00:31:38,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-10-11 00:31:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-11 00:31:38,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-10-11 00:31:38,631 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2021-10-11 00:31:38,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:38,631 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-10-11 00:31:38,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:31:38,632 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-10-11 00:31:38,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:31:38,633 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:38,633 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:38,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:38,849 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:38,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:38,849 INFO L82 PathProgramCache]: Analyzing trace with hash 678815956, now seen corresponding path program 2 times [2021-10-11 00:31:38,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:38,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935861928] [2021-10-11 00:31:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:38,864 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:31:38,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117841356] [2021-10-11 00:31:38,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:38,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-11 00:31:38,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:31:38,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-11 00:31:38,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:43,236 WARN L197 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 24 DAG size of output: 14 [2021-10-11 00:31:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:43,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935861928] [2021-10-11 00:31:43,301 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:31:43,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117841356] [2021-10-11 00:31:43,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:31:43,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-10-11 00:31:43,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89100271] [2021-10-11 00:31:43,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 00:31:43,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:43,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 00:31:43,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:31:43,304 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 10 states. [2021-10-11 00:31:43,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:43,585 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-10-11 00:31:43,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 00:31:43,586 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2021-10-11 00:31:43,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:43,587 INFO L225 Difference]: With dead ends: 31 [2021-10-11 00:31:43,587 INFO L226 Difference]: Without dead ends: 25 [2021-10-11 00:31:43,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:31:43,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-11 00:31:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-10-11 00:31:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-11 00:31:43,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-10-11 00:31:43,593 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 15 [2021-10-11 00:31:43,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:43,593 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-10-11 00:31:43,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 00:31:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-10-11 00:31:43,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:31:43,594 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:31:43,595 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:43,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:43,809 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:31:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:43,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1905056066, now seen corresponding path program 3 times [2021-10-11 00:31:43,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:43,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474253736] [2021-10-11 00:31:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:43,823 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:31:43,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701268429] [2021-10-11 00:31:43,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:44,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-11 00:31:44,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:31:44,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-11 00:31:44,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:44,235 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2021-10-11 00:31:44,846 WARN L197 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2021-10-11 00:31:45,283 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2021-10-11 00:31:45,309 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:31:45,316 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:31:45,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:31:45,334 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:31:45,360 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:31:45,369 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:31:45,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:31:45,380 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-10-11 00:31:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:31:45,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474253736] [2021-10-11 00:31:45,595 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:31:45,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701268429] [2021-10-11 00:31:45,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:31:45,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-11 00:31:45,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157772696] [2021-10-11 00:31:45,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:31:45,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:45,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:31:45,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:31:45,598 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 9 states. [2021-10-11 00:31:46,786 WARN L197 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2021-10-11 00:31:52,036 WARN L197 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 47 DAG size of output: 27 [2021-10-11 00:31:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:53,945 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-10-11 00:31:53,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:31:53,945 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2021-10-11 00:31:53,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:31:53,946 INFO L225 Difference]: With dead ends: 24 [2021-10-11 00:31:53,946 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:31:53,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-11 00:31:53,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:31:53,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:31:53,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:31:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:31:53,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-11 00:31:53,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:31:53,961 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:53,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:31:53,961 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:31:53,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:31:54,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:54,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:31:56,211 WARN L197 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2021-10-11 00:32:05,501 WARN L197 SmtUtils]: Spent 9.29 s on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2021-10-11 00:32:05,504 INFO L258 CegarLoopResult]: At program point L35-2(lines 35 44) the Hoare annotation is: (let ((.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse0 (<= 0 ULTIMATE.start_main_~z~0)) (.cse2 (<= ULTIMATE.start_main_~z~0 5))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse2 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 1))) (and .cse0 (= (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) 0) .cse1 (= (mod (div ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~z~0) 0) (not (= ULTIMATE.start_main_~z~0 0)) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0) (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1)) .cse2) (and .cse0 (= ULTIMATE.start_main_~x~0 1) .cse2 (= ULTIMATE.start_main_~y~0 1)))) [2021-10-11 00:32:05,504 INFO L262 CegarLoopResult]: For program point L35-3(lines 35 44) no Hoare annotation was computed. [2021-10-11 00:32:05,504 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 00:32:05,504 INFO L262 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-11 00:32:05,504 INFO L258 CegarLoopResult]: At program point L15-2(lines 38 39) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~z~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= ULTIMATE.start_main_~z~0 5))) (or (and .cse0 (= ULTIMATE.start_main_~x~0 1) .cse1 .cse2 (= ULTIMATE.start_main_~y~0 1)) (and .cse0 .cse1 (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse2 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 1))) (and .cse0 (= (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) 0) .cse1 (= (mod (div ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~z~0) 0) (not (= ULTIMATE.start_main_~z~0 0)) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0) (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1)) .cse2))) [2021-10-11 00:32:05,504 INFO L262 CegarLoopResult]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-11 00:32:05,504 INFO L262 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-11 00:32:05,505 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-10-11 00:32:05,505 INFO L265 CegarLoopResult]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2021-10-11 00:32:05,505 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:32:05,505 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:32:05,505 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:32:05,505 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 00:32:05,505 INFO L262 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-11 00:32:05,505 INFO L262 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-11 00:32:05,505 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-11 00:32:05,506 INFO L262 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-10-11 00:32:05,506 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:32:05,506 INFO L265 CegarLoopResult]: At program point L46(lines 23 47) the Hoare annotation is: true [2021-10-11 00:32:05,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:32:05 BoogieIcfgContainer [2021-10-11 00:32:05,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:32:05,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:32:05,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:32:05,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:32:05,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:37" (3/4) ... [2021-10-11 00:32:05,529 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:32:05,538 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-11 00:32:05,538 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:32:05,538 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:32:05,538 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:32:05,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c325fdf-62f3-4e12-a7c7-29cf8aa152d3/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:32:05,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:32:05,592 INFO L168 Benchmark]: Toolchain (without parser) took 29175.70 ms. Allocated memory was 79.7 MB in the beginning and 125.8 MB in the end (delta: 46.1 MB). Free memory was 45.8 MB in the beginning and 50.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:05,593 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 79.7 MB. Free memory was 52.5 MB in the beginning and 52.5 MB in the end (delta: 21.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:05,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.59 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 45.6 MB in the beginning and 81.2 MB in the end (delta: -35.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:05,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.37 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 79.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:05,594 INFO L168 Benchmark]: Boogie Preprocessor took 22.86 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 78.8 MB in the end (delta: 872.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:05,595 INFO L168 Benchmark]: RCFGBuilder took 316.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 65.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:05,596 INFO L168 Benchmark]: TraceAbstraction took 28464.00 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 65.0 MB in the beginning and 52.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:05,596 INFO L168 Benchmark]: Witness Printer took 66.75 ms. Allocated memory is still 125.8 MB. Free memory was 52.8 MB in the beginning and 50.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:05,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 79.7 MB. Free memory was 52.5 MB in the beginning and 52.5 MB in the end (delta: 21.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.59 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 45.6 MB in the beginning and 81.2 MB in the end (delta: -35.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.37 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 79.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.86 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 78.8 MB in the end (delta: 872.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 316.18 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 65.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28464.00 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 65.0 MB in the beginning and 52.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. * Witness Printer took 66.75 ms. Allocated memory is still 125.8 MB. Free memory was 52.8 MB in the beginning and 50.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((0 <= z && 1 == cond) && z == y) && z <= 5) && x == z + 1) || ((((((0 <= z && y % z == 0) && 1 == cond) && y / z % z == 0) && !(z == 0)) && z * y + x == z * x + 1) && z <= 5)) || (((0 <= z && x == 1) && z <= 5) && y == 1) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((0 <= z && x == 1) && 1 == cond) && z <= 5) && y == 1) || ((((0 <= z && 1 == cond) && z == y) && z <= 5) && x == z + 1)) || ((((((0 <= z && y % z == 0) && 1 == cond) && y / z % z == 0) && !(z == 0)) && z * y + x == z * x + 1) && z <= 5) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.0s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 71 SDslu, 111 SDs, 0 SdLazy, 165 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=4, 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, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 143 HoareAnnotationTreeSize, 4 FomulaSimplifications, 198 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 191 FormulaSimplificationTreeSizeReductionInter, 11.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 8782 SizeOfPredicates, 35 NumberOfNonLiveVariables, 308 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 11/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...