./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG --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 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:37:25,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:37:25,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:37:25,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:37:25,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:37:25,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:37:25,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:37:25,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:37:25,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:37:25,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:37:25,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:37:25,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:37:25,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:37:25,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:37:25,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:37:25,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:37:25,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:37:25,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:37:25,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:37:25,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:37:25,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:37:25,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:37:25,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:37:25,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:37:25,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:37:25,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:37:25,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:37:25,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:37:25,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:37:25,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:37:25,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:37:25,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:37:25,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:37:25,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:37:25,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:37:25,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:37:25,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:37:25,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:37:25,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:37:25,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:37:25,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:37:25,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-29 04:37:25,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:37:25,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:37:25,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:37:25,221 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:37:25,222 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:37:25,222 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:37:25,222 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:37:25,222 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:37:25,222 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:37:25,223 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:37:25,223 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:37:25,223 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:37:25,223 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:37:25,224 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:37:25,224 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:37:25,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:37:25,225 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:37:25,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:37:25,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:37:25,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:37:25,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:37:25,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:37:25,226 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 04:37:25,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:37:25,227 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:37:25,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:37:25,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:37:25,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:37:25,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:37:25,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:37:25,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:37:25,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:37:25,229 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:37:25,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:37:25,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:37:25,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:37:25,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:37:25,230 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_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2021-10-29 04:37:25,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:37:25,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:37:25,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:37:25,569 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:37:25,570 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:37:25,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-29 04:37:25,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/data/bf5385e32/d98e9743d418443c93f7b3e49c273491/FLAG00340660b [2021-10-29 04:37:26,323 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:37:26,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-29 04:37:26,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/data/bf5385e32/d98e9743d418443c93f7b3e49c273491/FLAG00340660b [2021-10-29 04:37:26,687 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/data/bf5385e32/d98e9743d418443c93f7b3e49c273491 [2021-10-29 04:37:26,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:37:26,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:37:26,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:37:26,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:37:26,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:37:26,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:26,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6826966a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26, skipping insertion in model container [2021-10-29 04:37:26,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:26,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:37:26,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:37:26,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:37:26,885 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:37:26,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:37:26,912 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:37:26,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26 WrapperNode [2021-10-29 04:37:26,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:37:26,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:37:26,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:37:26,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:37:26,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:26,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:26,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:37:26,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:37:26,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:37:26,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:37:26,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:26,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:26,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:26,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:26,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:27,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:27,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:27,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:37:27,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:37:27,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:37:27,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:37:27,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (1/1) ... [2021-10-29 04:37:27,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:37:27,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:37:27,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:37:27,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:37:27,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:37:27,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:37:27,410 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:37:27,410 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 04:37:27,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:37:27 BoogieIcfgContainer [2021-10-29 04:37:27,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:37:27,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:37:27,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:37:27,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:37:27,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:37:26" (1/3) ... [2021-10-29 04:37:27,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0cf96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:37:27, skipping insertion in model container [2021-10-29 04:37:27,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:37:26" (2/3) ... [2021-10-29 04:37:27,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0cf96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:37:27, skipping insertion in model container [2021-10-29 04:37:27,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:37:27" (3/3) ... [2021-10-29 04:37:27,423 INFO L111 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2021-10-29 04:37:27,429 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:37:27,430 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-29 04:37:27,481 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:37:27,489 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:37:27,490 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-29 04:37:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.8) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:37:27,512 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:37:27,513 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:37:27,513 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-29 04:37:27,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:37:27,520 INFO L85 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2021-10-29 04:37:27,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:37:27,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206155880] [2021-10-29 04:37:27,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:37:27,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:37:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:37:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:37:27,697 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:37:27,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206155880] [2021-10-29 04:37:27,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206155880] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:37:27,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:37:27,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 04:37:27,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780095394] [2021-10-29 04:37:27,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:37:27,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:37:27,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:37:27,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:37:27,728 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.8) internal successors, (27), 23 states have internal predecessors, (27), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:37:27,880 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2021-10-29 04:37:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:37:27,897 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 [2021-10-29 04:37:27,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:37:27,908 INFO L225 Difference]: With dead ends: 45 [2021-10-29 04:37:27,921 INFO L226 Difference]: Without dead ends: 41 [2021-10-29 04:37:27,925 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:37:27,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-29 04:37:27,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2021-10-29 04:37:27,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-29 04:37:28,010 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 5 [2021-10-29 04:37:28,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:37:28,010 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-29 04:37:28,011 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) [2021-10-29 04:37:28,011 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-10-29 04:37:28,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:37:28,012 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:37:28,012 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:37:28,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:37:28,013 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-29 04:37:28,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:37:28,014 INFO L85 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2021-10-29 04:37:28,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:37:28,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252084230] [2021-10-29 04:37:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:37:28,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:37:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:37:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:37:28,093 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:37:28,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252084230] [2021-10-29 04:37:28,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252084230] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:37:28,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:37:28,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 04:37:28,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981578743] [2021-10-29 04:37:28,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:37:28,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:37:28,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:37:28,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:37:28,098 INFO L87 Difference]: Start difference. First operand 31 states and 38 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) [2021-10-29 04:37:28,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:37:28,205 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2021-10-29 04:37:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:37:28,208 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 [2021-10-29 04:37:28,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:37:28,210 INFO L225 Difference]: With dead ends: 50 [2021-10-29 04:37:28,210 INFO L226 Difference]: Without dead ends: 48 [2021-10-29 04:37:28,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:37:28,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-29 04:37:28,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2021-10-29 04:37:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 38 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2021-10-29 04:37:28,224 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 5 [2021-10-29 04:37:28,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:37:28,225 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2021-10-29 04:37:28,225 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) [2021-10-29 04:37:28,226 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2021-10-29 04:37:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:37:28,227 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:37:28,227 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 04:37:28,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:37:28,228 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-29 04:37:28,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:37:28,231 INFO L85 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2021-10-29 04:37:28,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:37:28,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471844653] [2021-10-29 04:37:28,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:37:28,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:37:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:37:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:37:28,269 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:37:28,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471844653] [2021-10-29 04:37:28,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471844653] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:37:28,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:37:28,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:37:28,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369839735] [2021-10-29 04:37:28,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:37:28,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:37:28,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:37:28,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:37:28,273 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:37:28,296 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2021-10-29 04:37:28,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:37:28,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-10-29 04:37:28,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:37:28,298 INFO L225 Difference]: With dead ends: 39 [2021-10-29 04:37:28,298 INFO L226 Difference]: Without dead ends: 37 [2021-10-29 04:37:28,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:37:28,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-29 04:37:28,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-29 04:37:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 36 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2021-10-29 04:37:28,305 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 6 [2021-10-29 04:37:28,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:37:28,305 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2021-10-29 04:37:28,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2021-10-29 04:37:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:37:28,306 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:37:28,306 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 04:37:28,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 04:37:28,307 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-29 04:37:28,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:37:28,308 INFO L85 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2021-10-29 04:37:28,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:37:28,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617245091] [2021-10-29 04:37:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:37:28,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:37:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:37:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:37:28,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:37:28,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617245091] [2021-10-29 04:37:28,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617245091] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:37:28,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:37:28,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:37:28,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238471233] [2021-10-29 04:37:28,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:37:28,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:37:28,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:37:28,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:37:28,346 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:37:28,388 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2021-10-29 04:37:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:37:28,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-10-29 04:37:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:37:28,390 INFO L225 Difference]: With dead ends: 37 [2021-10-29 04:37:28,390 INFO L226 Difference]: Without dead ends: 35 [2021-10-29 04:37:28,390 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:37:28,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-29 04:37:28,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-29 04:37:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 34 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2021-10-29 04:37:28,396 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 6 [2021-10-29 04:37:28,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:37:28,396 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2021-10-29 04:37:28,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,396 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2021-10-29 04:37:28,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:37:28,397 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:37:28,397 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:37:28,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 04:37:28,398 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-29 04:37:28,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:37:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash 149003441, now seen corresponding path program 1 times [2021-10-29 04:37:28,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:37:28,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645558263] [2021-10-29 04:37:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:37:28,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:37:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:37:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:37:28,467 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:37:28,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645558263] [2021-10-29 04:37:28,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645558263] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:37:28,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:37:28,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:37:28,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12457836] [2021-10-29 04:37:28,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:37:28,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:37:28,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:37:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:37:28,474 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:37:28,532 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2021-10-29 04:37:28,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:37:28,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 04:37:28,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:37:28,534 INFO L225 Difference]: With dead ends: 35 [2021-10-29 04:37:28,534 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:37:28,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:37:28,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:37:28,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:37:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:37:28,536 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-29 04:37:28,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:37:28,537 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:37:28,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:37:28,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:37:28,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:37:28,540 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:37:28,541 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:37:28,546 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:37:28,546 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:37:28,546 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:37:28,547 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:37:28,547 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:37:28,547 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:37:28,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 04:37:28,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:37:28,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:37:28,579 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-10-29 04:37:28,579 INFO L857 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-10-29 04:37:28,580 INFO L857 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-10-29 04:37:28,581 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-10-29 04:37:28,582 INFO L857 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-10-29 04:37:28,582 INFO L857 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-10-29 04:37:28,583 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-10-29 04:37:28,586 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:37:28,586 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-10-29 04:37:28,586 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-10-29 04:37:28,586 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-10-29 04:37:28,587 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:37:28,587 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-10-29 04:37:28,587 INFO L857 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-10-29 04:37:28,587 INFO L857 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-10-29 04:37:28,587 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-10-29 04:37:28,588 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-10-29 04:37:28,588 INFO L853 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~x~0 2147483648)) [2021-10-29 04:37:28,588 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-29 04:37:28,588 INFO L857 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-10-29 04:37:28,588 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-10-29 04:37:28,589 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-10-29 04:37:28,589 INFO L857 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-10-29 04:37:28,589 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-10-29 04:37:28,592 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-29 04:37:28,594 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:37:28,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:37:28 BoogieIcfgContainer [2021-10-29 04:37:28,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:37:28,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:37:28,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:37:28,614 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:37:28,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:37:27" (3/4) ... [2021-10-29 04:37:28,617 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:37:28,628 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 04:37:28,628 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-29 04:37:28,628 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:37:28,682 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:37:28,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:37:28,689 INFO L168 Benchmark]: Toolchain (without parser) took 1997.05 ms. Allocated memory is still 107.0 MB. Free memory was 76.0 MB in the beginning and 56.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:37:28,690 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 81.8 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:37:28,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.08 ms. Allocated memory is still 107.0 MB. Free memory was 75.8 MB in the beginning and 67.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:37:28,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.41 ms. Allocated memory is still 107.0 MB. Free memory was 67.2 MB in the beginning and 65.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:37:28,694 INFO L168 Benchmark]: Boogie Preprocessor took 56.24 ms. Allocated memory is still 107.0 MB. Free memory was 65.8 MB in the beginning and 64.9 MB in the end (delta: 876.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:37:28,694 INFO L168 Benchmark]: RCFGBuilder took 394.08 ms. Allocated memory is still 107.0 MB. Free memory was 64.8 MB in the beginning and 55.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:37:28,695 INFO L168 Benchmark]: TraceAbstraction took 1195.96 ms. Allocated memory is still 107.0 MB. Free memory was 54.8 MB in the beginning and 59.4 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:37:28,695 INFO L168 Benchmark]: Witness Printer took 74.52 ms. Allocated memory is still 107.0 MB. Free memory was 59.4 MB in the beginning and 56.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:37:28,697 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 81.8 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 220.08 ms. Allocated memory is still 107.0 MB. Free memory was 75.8 MB in the beginning and 67.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.41 ms. Allocated memory is still 107.0 MB. Free memory was 67.2 MB in the beginning and 65.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.24 ms. Allocated memory is still 107.0 MB. Free memory was 65.8 MB in the beginning and 64.9 MB in the end (delta: 876.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 394.08 ms. Allocated memory is still 107.0 MB. Free memory was 64.8 MB in the beginning and 55.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1195.96 ms. Allocated memory is still 107.0 MB. Free memory was 54.8 MB in the beginning and 59.4 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 74.52 ms. Allocated memory is still 107.0 MB. Free memory was 59.4 MB in the beginning and 56.9 MB in the end (delta: 2.5 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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, 24 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 82 SDslu, 20 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 7 HoareAnnotationTreeSize, 1 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 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: 24]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483648 RESULT: Ultimate proved your program to be correct! [2021-10-29 04:37:28,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42467865-80c2-4fa2-aca4-2714f1afd421/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...