./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 46249a8081e9ed07db6908cd3a496204be92fe5d3b36976e28b801142a0a3633 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:28:14,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:28:14,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:28:14,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:28:14,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:28:14,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:28:14,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:28:14,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:28:14,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:28:14,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:28:14,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:28:14,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:28:14,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:28:14,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:28:14,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:28:14,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:28:14,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:28:14,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:28:14,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:28:14,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:28:14,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:28:14,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:28:14,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:28:14,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:28:14,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:28:14,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:28:14,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:28:14,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:28:14,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:28:14,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:28:14,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:28:14,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:28:14,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:28:14,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:28:14,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:28:14,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:28:14,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:28:14,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:28:14,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:28:14,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:28:14,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:28:14,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-07 08:28:14,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:28:14,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:28:14,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:28:14,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:28:14,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:28:14,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:28:14,839 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:28:14,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:28:14,840 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:28:14,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:28:14,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:28:14,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:28:14,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:28:14,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:28:14,842 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-07 08:28:14,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:28:14,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:28:14,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:28:14,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:28:14,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:28:14,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:28:14,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:28:14,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:28:14,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:28:14,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:28:14,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:28:14,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:28:14,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:28:14,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:28:14,846 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_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46249a8081e9ed07db6908cd3a496204be92fe5d3b36976e28b801142a0a3633 [2021-11-07 08:28:15,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:28:15,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:28:15,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:28:15,126 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:28:15,128 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:28:15,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2021-11-07 08:28:15,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/data/959ecccbd/22ed77feb74e4a94b1f5cba8196fb6c6/FLAGb8641b1a9 [2021-11-07 08:28:15,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:28:15,677 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2021-11-07 08:28:15,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/data/959ecccbd/22ed77feb74e4a94b1f5cba8196fb6c6/FLAGb8641b1a9 [2021-11-07 08:28:16,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/data/959ecccbd/22ed77feb74e4a94b1f5cba8196fb6c6 [2021-11-07 08:28:16,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:28:16,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:28:16,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:28:16,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:28:16,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:28:16,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638bf331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16, skipping insertion in model container [2021-11-07 08:28:16,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:28:16,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:28:16,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:28:16,248 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:28:16,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:28:16,278 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:28:16,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16 WrapperNode [2021-11-07 08:28:16,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:28:16,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:28:16,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:28:16,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:28:16,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:28:16,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:28:16,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:28:16,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:28:16,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:28:16,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:28:16,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:28:16,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:28:16,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (1/1) ... [2021-11-07 08:28:16,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:28:16,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:28:16,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:28:16,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:28:16,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:28:16,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:28:16,576 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:28:16,576 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-07 08:28:16,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:28:16 BoogieIcfgContainer [2021-11-07 08:28:16,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:28:16,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:28:16,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:28:16,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:28:16,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:28:16" (1/3) ... [2021-11-07 08:28:16,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f027420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:28:16, skipping insertion in model container [2021-11-07 08:28:16,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:16" (2/3) ... [2021-11-07 08:28:16,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f027420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:28:16, skipping insertion in model container [2021-11-07 08:28:16,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:28:16" (3/3) ... [2021-11-07 08:28:16,588 INFO L111 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex1.c [2021-11-07 08:28:16,594 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:28:16,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-07 08:28:16,645 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:28:16,653 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 08:28:16,653 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 08:28:16,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 08:28:16,673 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:28:16,674 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 08:28:16,674 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-07 08:28:16,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:28:16,680 INFO L85 PathProgramCache]: Analyzing trace with hash 963659, now seen corresponding path program 1 times [2021-11-07 08:28:16,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:28:16,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411200171] [2021-11-07 08:28:16,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:28:16,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:28:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:28:16,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:28:16,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:28:16,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411200171] [2021-11-07 08:28:16,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411200171] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:28:16,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:28:16,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:28:16,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110551788] [2021-11-07 08:28:16,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:28:16,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:28:16,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:28:16,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:28:16,861 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:16,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:28:16,990 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2021-11-07 08:28:16,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:28:16,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-07 08:28:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:28:17,000 INFO L225 Difference]: With dead ends: 45 [2021-11-07 08:28:17,000 INFO L226 Difference]: Without dead ends: 31 [2021-11-07 08:28:17,003 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:28:17,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-07 08:28:17,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 17. [2021-11-07 08:28:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-11-07 08:28:17,065 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2021-11-07 08:28:17,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:28:17,066 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-07 08:28:17,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,066 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-11-07 08:28:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 08:28:17,067 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:28:17,067 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 08:28:17,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:28:17,085 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-07 08:28:17,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:28:17,086 INFO L85 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-11-07 08:28:17,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:28:17,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521872832] [2021-11-07 08:28:17,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:28:17,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:28:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:28:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:28:17,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:28:17,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521872832] [2021-11-07 08:28:17,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521872832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:28:17,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:28:17,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:28:17,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710976718] [2021-11-07 08:28:17,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:28:17,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:28:17,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:28:17,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:28:17,150 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:28:17,238 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2021-11-07 08:28:17,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:28:17,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-07 08:28:17,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:28:17,240 INFO L225 Difference]: With dead ends: 31 [2021-11-07 08:28:17,240 INFO L226 Difference]: Without dead ends: 29 [2021-11-07 08:28:17,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:28:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-07 08:28:17,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 15. [2021-11-07 08:28:17,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-07 08:28:17,246 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 4 [2021-11-07 08:28:17,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:28:17,246 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-07 08:28:17,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,247 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-07 08:28:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 08:28:17,247 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:28:17,247 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 08:28:17,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:28:17,248 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-07 08:28:17,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:28:17,249 INFO L85 PathProgramCache]: Analyzing trace with hash 29873486, now seen corresponding path program 1 times [2021-11-07 08:28:17,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:28:17,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953812139] [2021-11-07 08:28:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:28:17,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:28:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:28:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:28:17,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:28:17,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953812139] [2021-11-07 08:28:17,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953812139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:28:17,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:28:17,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:28:17,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626583538] [2021-11-07 08:28:17,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:28:17,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:28:17,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:28:17,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:28:17,290 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:28:17,339 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-11-07 08:28:17,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:28:17,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 08:28:17,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:28:17,341 INFO L225 Difference]: With dead ends: 15 [2021-11-07 08:28:17,341 INFO L226 Difference]: Without dead ends: 13 [2021-11-07 08:28:17,342 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:28:17,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-07 08:28:17,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-07 08:28:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-11-07 08:28:17,346 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2021-11-07 08:28:17,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:28:17,358 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-07 08:28:17,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,359 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-07 08:28:17,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 08:28:17,360 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:28:17,360 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 08:28:17,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:28:17,361 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-07 08:28:17,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:28:17,362 INFO L85 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2021-11-07 08:28:17,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:28:17,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741625952] [2021-11-07 08:28:17,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:28:17,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:28:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:28:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:28:17,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:28:17,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741625952] [2021-11-07 08:28:17,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741625952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:28:17,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:28:17,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:28:17,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025297242] [2021-11-07 08:28:17,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:28:17,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:28:17,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:28:17,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:28:17,434 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:28:17,481 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-11-07 08:28:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:28:17,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 08:28:17,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:28:17,483 INFO L225 Difference]: With dead ends: 13 [2021-11-07 08:28:17,483 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 08:28:17,484 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:28:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 08:28:17,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 08:28:17,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 08:28:17,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-11-07 08:28:17,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:28:17,486 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:28:17,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:28:17,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:28:17,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 08:28:17,490 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:28:17,492 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:28:17,493 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:28:17,493 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:28:17,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:28:17,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:28:17,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:28:17,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:28:17,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:28:17,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 08:28:17,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:28:17,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:28:17,571 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-11-07 08:28:17,572 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 08:28:17,572 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-11-07 08:28:17,572 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-07 08:28:17,572 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-11-07 08:28:17,573 INFO L857 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-11-07 08:28:17,573 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-11-07 08:28:17,573 INFO L857 garLoopResultBuilder]: For program point L21-2(line 21) no Hoare annotation was computed. [2021-11-07 08:28:17,573 INFO L857 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-11-07 08:28:17,573 INFO L857 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-11-07 08:28:17,573 INFO L857 garLoopResultBuilder]: For program point L19-2(line 19) no Hoare annotation was computed. [2021-11-07 08:28:17,574 INFO L857 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-11-07 08:28:17,574 INFO L857 garLoopResultBuilder]: For program point L17-2(lines 17 23) no Hoare annotation was computed. [2021-11-07 08:28:17,574 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-07 08:28:17,574 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-11-07 08:28:17,574 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-11-07 08:28:17,575 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 08:28:17,575 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-07 08:28:17,575 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 08:28:17,575 INFO L853 garLoopResultBuilder]: At program point L24(lines 13 25) the Hoare annotation is: (<= ULTIMATE.start_main_~q~0 2147483647) [2021-11-07 08:28:17,575 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-11-07 08:28:17,576 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 17 23) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~q~0 2147483647)) [2021-11-07 08:28:17,576 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-07 08:28:17,579 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-07 08:28:17,581 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:28:17,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:28:17 BoogieIcfgContainer [2021-11-07 08:28:17,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:28:17,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:28:17,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:28:17,596 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:28:17,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:28:16" (3/4) ... [2021-11-07 08:28:17,600 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 08:28:17,610 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-07 08:28:17,611 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 08:28:17,654 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:28:17,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:28:17,656 INFO L168 Benchmark]: Toolchain (without parser) took 1578.09 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 58.3 MB in the beginning and 70.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:28:17,657 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 49.4 MB in the beginning and 49.4 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:28:17,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.26 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 58.1 MB in the beginning and 87.4 MB in the end (delta: -29.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:28:17,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.73 ms. Allocated memory is still 111.1 MB. Free memory was 87.4 MB in the beginning and 86.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:28:17,659 INFO L168 Benchmark]: Boogie Preprocessor took 17.72 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 85.3 MB in the end (delta: 886.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:28:17,659 INFO L168 Benchmark]: RCFGBuilder took 248.65 ms. Allocated memory is still 111.1 MB. Free memory was 85.3 MB in the beginning and 76.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:28:17,660 INFO L168 Benchmark]: TraceAbstraction took 1015.12 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 73.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:28:17,660 INFO L168 Benchmark]: Witness Printer took 58.71 ms. Allocated memory is still 111.1 MB. Free memory was 73.2 MB in the beginning and 70.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:28:17,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 49.4 MB in the beginning and 49.4 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 196.26 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 58.1 MB in the beginning and 87.4 MB in the end (delta: -29.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.73 ms. Allocated memory is still 111.1 MB. Free memory was 87.4 MB in the beginning and 86.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.72 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 85.3 MB in the end (delta: 886.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 248.65 ms. Allocated memory is still 111.1 MB. Free memory was 85.3 MB in the beginning and 76.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1015.12 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 73.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Witness Printer took 58.71 ms. Allocated memory is still 111.1 MB. Free memory was 73.2 MB in the beginning and 70.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 104 SDslu, 3 SDs, 0 SdLazy, 115 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 4 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= y + 2147483648 && y <= 2147483647) && q <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: q <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-07 08:28:17,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0148721-9ddc-483c-97f2-9cd5a1056ec7/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE