./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:55:17,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:55:17,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:55:17,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:55:17,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:55:17,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:55:17,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:55:17,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:55:17,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:55:17,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:55:17,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:55:17,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:55:17,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:55:17,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:55:17,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:55:17,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:55:17,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:55:17,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:55:17,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:55:17,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:55:17,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:55:17,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:55:17,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:55:17,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:55:17,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:55:17,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:55:17,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:55:17,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:55:17,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:55:17,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:55:17,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:55:17,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:55:17,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:55:17,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:55:17,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:55:17,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:55:17,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:55:17,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:55:17,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:55:17,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:55:17,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:55:17,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-16 02:55:17,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:55:17,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:55:17,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:55:17,910 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:55:17,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:55:17,910 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:55:17,911 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:55:17,911 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:55:17,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:55:17,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:55:17,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:55:17,912 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:55:17,912 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:55:17,912 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:55:17,913 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:55:17,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:55:17,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:55:17,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:55:17,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:55:17,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:55:17,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:55:17,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:55:17,915 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:55:17,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:55:17,916 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:55:17,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:55:17,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:55:17,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:55:17,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:55:17,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:55:17,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:55:17,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:55:17,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:55:17,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:55:17,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:55:17,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:55:17,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:55:17,919 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2021-10-16 02:55:18,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:55:18,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:55:18,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:55:18,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:55:18,303 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:55:18,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-10-16 02:55:18,433 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/data/dd9439c84/483acb355a3045d29425265f3e44e575/FLAG228bab51d [2021-10-16 02:55:18,988 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:55:18,989 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-10-16 02:55:19,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/data/dd9439c84/483acb355a3045d29425265f3e44e575/FLAG228bab51d [2021-10-16 02:55:19,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/data/dd9439c84/483acb355a3045d29425265f3e44e575 [2021-10-16 02:55:19,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:55:19,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:55:19,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:55:19,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:55:19,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:55:19,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9df281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19, skipping insertion in model container [2021-10-16 02:55:19,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:55:19,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:55:19,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:55:19,601 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:55:19,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:55:19,657 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:55:19,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19 WrapperNode [2021-10-16 02:55:19,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:55:19,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:55:19,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:55:19,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:55:19,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:55:19,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:55:19,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:55:19,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:55:19,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:55:19,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:55:19,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:55:19,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:55:19,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (1/1) ... [2021-10-16 02:55:19,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:55:19,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:55:19,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:55:19,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:55:19,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:55:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:55:20,142 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:55:20,143 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 02:55:20,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:20 BoogieIcfgContainer [2021-10-16 02:55:20,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:55:20,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:55:20,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:55:20,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:55:20,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:55:19" (1/3) ... [2021-10-16 02:55:20,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c890f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:20, skipping insertion in model container [2021-10-16 02:55:20,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:19" (2/3) ... [2021-10-16 02:55:20,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c890f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:20, skipping insertion in model container [2021-10-16 02:55:20,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:20" (3/3) ... [2021-10-16 02:55:20,158 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-10-16 02:55:20,165 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:55:20,165 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-16 02:55:20,228 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:55:20,237 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:55:20,238 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 02:55:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:55:20,262 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:20,263 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:55:20,263 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:55:20,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:20,271 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2021-10-16 02:55:20,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:55:20,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755180415] [2021-10-16 02:55:20,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:20,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:55:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:20,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:20,450 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:55:20,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755180415] [2021-10-16 02:55:20,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755180415] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:20,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:55:20,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:55:20,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019648316] [2021-10-16 02:55:20,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:20,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:55:20,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:20,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,481 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 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 3 states, 2 states have (on average 2.0) 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) [2021-10-16 02:55:20,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:20,528 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-10-16 02:55:20,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:20,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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 [2021-10-16 02:55:20,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:20,541 INFO L225 Difference]: With dead ends: 22 [2021-10-16 02:55:20,541 INFO L226 Difference]: Without dead ends: 19 [2021-10-16 02:55:20,544 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-16 02:55:20,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2021-10-16 02:55:20,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-10-16 02:55:20,584 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 4 [2021-10-16 02:55:20,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:20,585 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-16 02:55:20,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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) [2021-10-16 02:55:20,586 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-10-16 02:55:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:55:20,587 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:20,587 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:55:20,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:55:20,588 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:55:20,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:20,589 INFO L82 PathProgramCache]: Analyzing trace with hash 964189, now seen corresponding path program 1 times [2021-10-16 02:55:20,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:55:20,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132746560] [2021-10-16 02:55:20,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:20,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:55:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:20,633 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:55:20,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132746560] [2021-10-16 02:55:20,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132746560] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:20,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:55:20,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:55:20,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225287635] [2021-10-16 02:55:20,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:20,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:55:20,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:20,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,645 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.0) 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) [2021-10-16 02:55:20,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:20,673 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-10-16 02:55:20,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:20,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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 [2021-10-16 02:55:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:20,691 INFO L225 Difference]: With dead ends: 13 [2021-10-16 02:55:20,692 INFO L226 Difference]: Without dead ends: 12 [2021-10-16 02:55:20,693 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-16 02:55:20,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-16 02:55:20,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 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) [2021-10-16 02:55:20,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-10-16 02:55:20,697 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 4 [2021-10-16 02:55:20,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:20,697 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-10-16 02:55:20,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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) [2021-10-16 02:55:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-10-16 02:55:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:55:20,698 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:20,698 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:55:20,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:55:20,699 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:55:20,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:20,701 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2021-10-16 02:55:20,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:55:20,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707390781] [2021-10-16 02:55:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:20,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:55:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:20,755 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:55:20,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707390781] [2021-10-16 02:55:20,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707390781] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:20,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:55:20,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:55:20,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965571860] [2021-10-16 02:55:20,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:20,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:55:20,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:20,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,760 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:20,778 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-10-16 02:55:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:20,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 02:55:20,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:20,780 INFO L225 Difference]: With dead ends: 13 [2021-10-16 02:55:20,780 INFO L226 Difference]: Without dead ends: 12 [2021-10-16 02:55:20,781 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-16 02:55:20,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-16 02:55:20,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-16 02:55:20,786 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2021-10-16 02:55:20,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:20,786 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-16 02:55:20,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-16 02:55:20,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:55:20,788 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:20,788 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:55:20,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:55:20,789 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:55:20,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:20,790 INFO L82 PathProgramCache]: Analyzing trace with hash 29889919, now seen corresponding path program 1 times [2021-10-16 02:55:20,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:55:20,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435361910] [2021-10-16 02:55:20,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:20,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:55:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:20,830 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:55:20,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435361910] [2021-10-16 02:55:20,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435361910] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:20,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:55:20,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 02:55:20,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140231673] [2021-10-16 02:55:20,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:20,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:55:20,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:20,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,836 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:20,850 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-10-16 02:55:20,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:20,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 02:55:20,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:20,852 INFO L225 Difference]: With dead ends: 11 [2021-10-16 02:55:20,852 INFO L226 Difference]: Without dead ends: 10 [2021-10-16 02:55:20,853 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-16 02:55:20,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-16 02:55:20,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-16 02:55:20,858 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 5 [2021-10-16 02:55:20,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:20,858 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-16 02:55:20,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,859 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-10-16 02:55:20,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:55:20,860 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:20,860 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-16 02:55:20,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 02:55:20,861 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:55:20,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:20,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166548, now seen corresponding path program 1 times [2021-10-16 02:55:20,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:55:20,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826018859] [2021-10-16 02:55:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:20,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:55:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:55:20,900 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:55:20,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826018859] [2021-10-16 02:55:20,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826018859] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:20,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:55:20,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:55:20,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034631516] [2021-10-16 02:55:20,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:20,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:55:20,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:20,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,905 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:20,926 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-10-16 02:55:20,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:20,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-16 02:55:20,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:20,928 INFO L225 Difference]: With dead ends: 13 [2021-10-16 02:55:20,928 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:55:20,929 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:55:20,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:55:20,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:55:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:55:20,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-10-16 02:55:20,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:20,931 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:55:20,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:20,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:55:20,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:55:20,935 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:55:20,936 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:55:20,936 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:55:20,937 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:55:20,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 02:55:20,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:55:20,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:55:20,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:55:20,988 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-10-16 02:55:20,988 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:55:20,988 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-16 02:55:20,989 INFO L853 garLoopResultBuilder]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= ULTIMATE.start_main_~i~0 4) (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648)) (<= 0 ULTIMATE.start_main_~j~0)) [2021-10-16 02:55:20,989 INFO L857 garLoopResultBuilder]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2021-10-16 02:55:20,990 INFO L853 garLoopResultBuilder]: At program point L17-2(lines 17 23) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648)) [2021-10-16 02:55:20,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-10-16 02:55:20,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-16 02:55:20,991 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:55:20,991 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-16 02:55:20,991 INFO L857 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-10-16 02:55:20,991 INFO L857 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-10-16 02:55:20,997 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:55:21,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:55:21 BoogieIcfgContainer [2021-10-16 02:55:21,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:55:21,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:55:21,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:55:21,018 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:55:21,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:20" (3/4) ... [2021-10-16 02:55:21,022 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:55:21,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-16 02:55:21,035 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:55:21,035 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:55:21,079 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:55:21,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:55:21,082 INFO L168 Benchmark]: Toolchain (without parser) took 1707.17 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 70.7 MB in the beginning and 88.8 MB in the end (delta: -18.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:21,082 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory is still 31.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:55:21,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.09 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 81.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:21,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.20 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 79.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:55:21,084 INFO L168 Benchmark]: Boogie Preprocessor took 48.92 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 79.1 MB in the end (delta: 812.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:55:21,085 INFO L168 Benchmark]: RCFGBuilder took 396.60 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 70.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:21,086 INFO L168 Benchmark]: TraceAbstraction took 869.00 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 69.6 MB in the beginning and 91.0 MB in the end (delta: -21.4 MB). Peak memory consumption was 798.5 kB. Max. memory is 16.1 GB. [2021-10-16 02:55:21,087 INFO L168 Benchmark]: Witness Printer took 61.56 ms. Allocated memory is still 125.8 MB. Free memory was 91.0 MB in the beginning and 88.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:21,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory is still 31.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.09 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 81.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.20 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 79.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.92 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 79.1 MB in the end (delta: 812.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 396.60 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 70.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 869.00 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 69.6 MB in the beginning and 91.0 MB in the end (delta: -21.4 MB). Peak memory consumption was 798.5 kB. Max. memory is 16.1 GB. * Witness Printer took 61.56 ms. Allocated memory is still 125.8 MB. Free memory was 91.0 MB in the beginning and 88.8 MB in the end (delta: 2.2 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 771.1ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 14.0ms, AutomataDifference: 206.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 49.3ms, InitialAbstractionConstructionTime: 13.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 28 SDslu, 7 SDs, 0 SdLazy, 36 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=1, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 34.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 17 HoareAnnotationTreeSize, 2 FomulaSimplifications, 29 FormulaSimplificationTreeSizeReduction, 23.1ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 17.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 8.6ms SsaConstructionTime, 44.4ms SatisfiabilityAnalysisTime, 188.8ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (i <= 4 && 0 <= i + 2147483648) && 0 <= j - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:55:21,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9fe1d60-40d3-4e38-8249-566fcd126ad6/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...