./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.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_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/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_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/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_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/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 33a8be774dbf0ffa25cd035ec8d49deb9466ec7f ......................................................................................................................................................................................................................................................................................................................................................................................... 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 00:23:39,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:39,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:39,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:39,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:39,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:39,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:39,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:39,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:39,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:39,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:39,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:39,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:39,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:39,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:39,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:39,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:39,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:39,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:39,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:39,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:39,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:39,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:39,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:39,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:39,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:39,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:39,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:39,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:39,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:39,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:39,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:39,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:39,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:39,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:39,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:39,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:39,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:39,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:39,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:39,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:39,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:23:39,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:39,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:39,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:39,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:39,700 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:39,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:39,701 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:23:39,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:39,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:23:39,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:39,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:23:39,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:23:39,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:23:39,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:23:39,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:23:39,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:39,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:23:39,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:39,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:39,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:23:39,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:39,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:39,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:23:39,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:23:39,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:39,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:23:39,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:23:39,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:39,713 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_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33a8be774dbf0ffa25cd035ec8d49deb9466ec7f [2021-10-11 00:23:40,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:40,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:40,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:40,084 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:40,085 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:40,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2021-10-11 00:23:40,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC/data/53c11550d/b4b697d095b542cda3732dd2c76d892e/FLAG3e1685467 [2021-10-11 00:23:40,689 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:40,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2021-10-11 00:23:40,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC/data/53c11550d/b4b697d095b542cda3732dd2c76d892e/FLAG3e1685467 [2021-10-11 00:23:41,024 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC/data/53c11550d/b4b697d095b542cda3732dd2c76d892e [2021-10-11 00:23:41,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:41,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:23:41,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:41,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:41,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:41,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c3743b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41, skipping insertion in model container [2021-10-11 00:23:41,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:41,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:41,231 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_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c[573,586] [2021-10-11 00:23:41,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:41,266 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:41,281 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_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c[573,586] [2021-10-11 00:23:41,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:41,305 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:41,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41 WrapperNode [2021-10-11 00:23:41,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:41,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:41,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:23:41,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:23:41,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:41,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:41,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:41,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:41,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... [2021-10-11 00:23:41,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:41,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:41,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:41,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:41,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/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 00:23:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:23:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:23:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:41,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:41,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:41,694 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-11 00:23:41,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:41 BoogieIcfgContainer [2021-10-11 00:23:41,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:41,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:23:41,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:23:41,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:23:41,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:23:41" (1/3) ... [2021-10-11 00:23:41,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507a9560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:41, skipping insertion in model container [2021-10-11 00:23:41,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:41" (2/3) ... [2021-10-11 00:23:41,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507a9560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:41, skipping insertion in model container [2021-10-11 00:23:41,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:41" (3/3) ... [2021-10-11 00:23:41,705 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound1.c [2021-10-11 00:23:41,723 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:23:41,738 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:23:41,750 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:23:41,774 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:23:41,775 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:23:41,775 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:23:41,775 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:41,775 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:41,775 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:23:41,775 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:41,775 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:23:41,789 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2021-10-11 00:23:41,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:23:41,794 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:41,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:41,795 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:41,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:41,801 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2021-10-11 00:23:41,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:41,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885804170] [2021-10-11 00:23:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:41,957 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 00:23:41,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885804170] [2021-10-11 00:23:41,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:41,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:23:41,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494464700] [2021-10-11 00:23:41,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:23:41,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:41,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:23:41,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:23:41,989 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2021-10-11 00:23:42,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:42,006 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2021-10-11 00:23:42,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:23:42,008 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 00:23:42,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:42,018 INFO L225 Difference]: With dead ends: 37 [2021-10-11 00:23:42,018 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 00:23:42,021 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 00:23:42,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 00:23:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 00:23:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 00:23:42,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-11 00:23:42,074 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2021-10-11 00:23:42,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:42,075 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-11 00:23:42,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:23:42,075 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-11 00:23:42,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:23:42,076 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:42,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:42,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:23:42,077 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:42,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:42,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2021-10-11 00:23:42,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:42,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788448232] [2021-10-11 00:23:42,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:42,116 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:23:42,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585981296] [2021-10-11 00:23:42,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/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 00:23:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:42,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-11 00:23:42,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:42,423 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 00:23:42,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788448232] [2021-10-11 00:23:42,424 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:23:42,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585981296] [2021-10-11 00:23:42,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:42,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 00:23:42,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717180205] [2021-10-11 00:23:42,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:23:42,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:42,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:23:42,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:23:42,429 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 8 states. [2021-10-11 00:23:42,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:42,807 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2021-10-11 00:23:42,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:23:42,808 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2021-10-11 00:23:42,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:42,810 INFO L225 Difference]: With dead ends: 27 [2021-10-11 00:23:42,810 INFO L226 Difference]: Without dead ends: 25 [2021-10-11 00:23:42,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:23:42,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-11 00:23:42,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2021-10-11 00:23:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 00:23:42,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-10-11 00:23:42,820 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2021-10-11 00:23:42,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:42,820 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-10-11 00:23:42,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:23:42,820 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-10-11 00:23:42,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:23:42,821 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:42,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:43,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 00:23:43,041 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:43,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:43,041 INFO L82 PathProgramCache]: Analyzing trace with hash 636930749, now seen corresponding path program 1 times [2021-10-11 00:23:43,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:43,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439061690] [2021-10-11 00:23:43,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:43,068 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:23:43,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312879793] [2021-10-11 00:23:43,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/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 00:23:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:43,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 00:23:43,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:43,283 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 00:23:43,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439061690] [2021-10-11 00:23:43,284 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:23:43,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312879793] [2021-10-11 00:23:43,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:43,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 00:23:43,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299965342] [2021-10-11 00:23:43,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:23:43,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:43,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:23:43,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:23:43,298 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 9 states. [2021-10-11 00:23:43,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:43,453 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-10-11 00:23:43,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:23:43,454 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2021-10-11 00:23:43,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:43,454 INFO L225 Difference]: With dead ends: 18 [2021-10-11 00:23:43,454 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:23:43,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-11 00:23:43,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:23:43,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:23:43,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:23:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:23:43,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-11 00:23:43,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:43,456 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:43,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:23:43,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:23:43,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:23:43,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:43,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:23:43,849 INFO L262 CegarLoopResult]: For program point L35-2(lines 35 48) no Hoare annotation was computed. [2021-10-11 00:23:43,849 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-10-11 00:23:43,849 INFO L262 CegarLoopResult]: For program point L40(lines 40 47) no Hoare annotation was computed. [2021-10-11 00:23:43,849 INFO L258 CegarLoopResult]: At program point L40-2(lines 35 48) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_main_~x2~0 0))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 0 ULTIMATE.start_main_~x1~0)) (.cse3 (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0))))) (or (and .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1 .cse2 .cse3 (<= ULTIMATE.start_main_~y3~0 ULTIMATE.start_main_~x1~0)) (and .cse0 (= ULTIMATE.start_main_~x1~0 ULTIMATE.start_main_~y3~0) .cse1 .cse2 (= ULTIMATE.start_main_~y2~0 0) .cse3))) [2021-10-11 00:23:43,850 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:23:43,850 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:23:43,850 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:23:43,850 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-10-11 00:23:43,850 INFO L262 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2021-10-11 00:23:43,850 INFO L258 CegarLoopResult]: At program point L16-2(line 38) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~x2~0 0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~x1~0) (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0))) (<= ULTIMATE.start_main_~y3~0 ULTIMATE.start_main_~x1~0)) [2021-10-11 00:23:43,850 INFO L262 CegarLoopResult]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2021-10-11 00:23:43,851 INFO L262 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2021-10-11 00:23:43,851 INFO L262 CegarLoopResult]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2021-10-11 00:23:43,851 INFO L265 CegarLoopResult]: At program point L16-5(lines 15 21) the Hoare annotation is: true [2021-10-11 00:23:43,851 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:23:43,851 INFO L265 CegarLoopResult]: At program point L50(lines 22 51) the Hoare annotation is: true [2021-10-11 00:23:43,851 INFO L262 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-10-11 00:23:43,851 INFO L262 CegarLoopResult]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2021-10-11 00:23:43,851 INFO L262 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2021-10-11 00:23:43,852 INFO L262 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2021-10-11 00:23:43,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:23:43 BoogieIcfgContainer [2021-10-11 00:23:43,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:23:43,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:43,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:43,881 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:43,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:41" (3/4) ... [2021-10-11 00:23:43,885 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:23:43,899 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-11 00:23:43,899 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:23:43,900 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:23:43,900 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:23:43,942 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee2db31d-d8af-42b3-ad8a-67f614e1c6be/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:23:43,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:43,944 INFO L168 Benchmark]: Toolchain (without parser) took 2911.95 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 66.8 MB in the beginning and 85.0 MB in the end (delta: -18.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:43,945 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 98.6 MB. Free memory is still 52.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:43,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.63 ms. Allocated memory is still 98.6 MB. Free memory was 66.6 MB in the beginning and 74.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:43,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.12 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 73.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:43,946 INFO L168 Benchmark]: Boogie Preprocessor took 32.74 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 72.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:43,950 INFO L168 Benchmark]: RCFGBuilder took 283.35 ms. Allocated memory is still 98.6 MB. Free memory was 72.1 MB in the beginning and 59.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:43,951 INFO L168 Benchmark]: TraceAbstraction took 2181.87 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 58.8 MB in the beginning and 87.1 MB in the end (delta: -28.4 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:43,952 INFO L168 Benchmark]: Witness Printer took 62.35 ms. Allocated memory is still 127.9 MB. Free memory was 87.1 MB in the beginning and 85.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:43,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 98.6 MB. Free memory is still 52.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.63 ms. Allocated memory is still 98.6 MB. Free memory was 66.6 MB in the beginning and 74.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.12 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 73.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.74 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 72.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 283.35 ms. Allocated memory is still 98.6 MB. Free memory was 72.1 MB in the beginning and 59.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2181.87 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 58.8 MB in the beginning and 87.1 MB in the end (delta: -28.4 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Witness Printer took 62.35 ms. Allocated memory is still 127.9 MB. Free memory was 87.1 MB in the beginning and 85.0 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: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: 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: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((!(x2 == 0) && 1 == cond) && cond == 1) && 0 <= x1) && x1 == y2 + y3 + y1 * x2) && y3 <= x1) || (((((!(x2 == 0) && x1 == y3) && cond == 1) && 0 <= x1) && y2 == 0) && x1 == y2 + y3 + y1 * x2) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((!(x2 == 0) && 1 == cond) && cond == 1) && 0 <= x1) && x1 == y2 + y3 + y1 * x2) && y3 <= x1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 85 SDslu, 27 SDs, 0 SdLazy, 76 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 78 HoareAnnotationTreeSize, 4 FomulaSimplifications, 47 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1653 SizeOfPredicates, 20 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...