./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7 --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 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:30:33,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:30:33,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:30:33,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:30:33,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:30:33,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:30:33,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:30:33,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:30:33,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:30:33,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:30:33,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:30:33,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:30:33,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:30:33,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:30:33,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:30:33,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:30:33,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:30:33,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:30:33,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:30:33,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:30:33,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:30:33,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:30:33,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:30:33,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:30:33,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:30:33,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:30:33,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:30:33,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:30:33,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:30:33,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:30:33,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:30:33,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:30:33,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:30:33,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:30:33,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:30:33,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:30:33,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:30:33,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:30:33,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:30:33,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:30:33,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:30:33,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-25 18:30:33,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:30:33,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:30:33,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:30:33,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:30:33,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:30:33,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:30:33,929 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:30:33,929 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:30:33,929 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:30:33,938 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:30:33,939 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:30:33,939 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:30:33,939 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:30:33,939 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:30:33,940 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:30:33,940 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:30:33,940 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:30:33,940 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:30:33,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:30:33,942 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 18:30:33,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:30:33,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:30:33,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:30:33,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:30:33,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:30:33,943 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 18:30:33,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:30:33,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:30:33,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:30:33,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:30:33,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:30:33,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:30:33,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:30:33,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:30:33,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:30:33,946 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:30:33,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:30:33,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:30:33,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:30:33,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:30:33,947 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_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 [2021-11-25 18:30:34,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:30:34,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:30:34,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:30:34,282 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:30:34,283 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:30:34,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2021-11-25 18:30:34,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/data/5fb1b117e/43534c6c52f64400adc12e32ae169983/FLAG06095c119 [2021-11-25 18:30:34,947 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:30:34,948 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2021-11-25 18:30:34,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/data/5fb1b117e/43534c6c52f64400adc12e32ae169983/FLAG06095c119 [2021-11-25 18:30:35,324 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/data/5fb1b117e/43534c6c52f64400adc12e32ae169983 [2021-11-25 18:30:35,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:30:35,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:30:35,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:30:35,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:30:35,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:30:35,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b2828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35, skipping insertion in model container [2021-11-25 18:30:35,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:30:35,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:30:35,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:30:35,551 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:30:35,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:30:35,596 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:30:35,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35 WrapperNode [2021-11-25 18:30:35,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:30:35,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:30:35,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:30:35,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:30:35,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,638 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2021-11-25 18:30:35,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:30:35,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:30:35,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:30:35,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:30:35,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:30:35,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:30:35,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:30:35,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:30:35,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (1/1) ... [2021-11-25 18:30:35,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:30:35,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:35,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:30:35,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:30:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:30:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:30:35,799 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:30:35,801 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:30:35,906 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:30:35,922 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:30:35,922 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 18:30:35,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:35 BoogieIcfgContainer [2021-11-25 18:30:35,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:30:35,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:30:35,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:30:35,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:30:35,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:30:35" (1/3) ... [2021-11-25 18:30:35,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6e2710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:35, skipping insertion in model container [2021-11-25 18:30:35,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:35" (2/3) ... [2021-11-25 18:30:35,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6e2710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:35, skipping insertion in model container [2021-11-25 18:30:35,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:35" (3/3) ... [2021-11-25 18:30:35,934 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2021-11-25 18:30:35,940 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:30:35,940 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-25 18:30:35,993 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:30:36,001 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:30:36,001 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-25 18:30:36,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:36,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 18:30:36,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:36,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 18:30:36,022 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)] === [2021-11-25 18:30:36,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:36,028 INFO L85 PathProgramCache]: Analyzing trace with hash 65732945, now seen corresponding path program 1 times [2021-11-25 18:30:36,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:36,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961818648] [2021-11-25 18:30:36,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:36,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:36,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:36,184 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:36,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961818648] [2021-11-25 18:30:36,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961818648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:36,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:36,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:30:36,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524171787] [2021-11-25 18:30:36,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:36,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:30:36,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:36,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:30:36,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:30:36,222 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-11-25 18:30:36,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:36,267 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-11-25 18:30:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:30:36,270 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 [2021-11-25 18:30:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:36,277 INFO L225 Difference]: With dead ends: 21 [2021-11-25 18:30:36,277 INFO L226 Difference]: Without dead ends: 16 [2021-11-25 18:30:36,280 INFO L932 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 [2021-11-25 18:30:36,285 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:36,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:30:36,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-25 18:30:36,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-11-25 18:30:36,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:36,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-25 18:30:36,335 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 5 [2021-11-25 18:30:36,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:36,336 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-25 18:30:36,336 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) [2021-11-25 18:30:36,336 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-25 18:30:36,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 18:30:36,337 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:36,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 18:30:36,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:30:36,338 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)] === [2021-11-25 18:30:36,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:36,339 INFO L85 PathProgramCache]: Analyzing trace with hash 65733137, now seen corresponding path program 1 times [2021-11-25 18:30:36,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:36,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378977245] [2021-11-25 18:30:36,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:36,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:36,370 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:36,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378977245] [2021-11-25 18:30:36,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378977245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:36,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:36,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:30:36,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890724470] [2021-11-25 18:30:36,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:36,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:30:36,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:36,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:30:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:30:36,375 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:36,419 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-11-25 18:30:36,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:30:36,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 18:30:36,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:36,420 INFO L225 Difference]: With dead ends: 30 [2021-11-25 18:30:36,420 INFO L226 Difference]: Without dead ends: 17 [2021-11-25 18:30:36,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:30:36,423 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:36,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:30:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-25 18:30:36,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-25 18:30:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:36,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-11-25 18:30:36,430 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 5 [2021-11-25 18:30:36,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:36,430 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-11-25 18:30:36,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-11-25 18:30:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 18:30:36,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:36,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 18:30:36,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:30:36,432 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)] === [2021-11-25 18:30:36,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:36,433 INFO L85 PathProgramCache]: Analyzing trace with hash 2037721346, now seen corresponding path program 1 times [2021-11-25 18:30:36,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:36,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055657008] [2021-11-25 18:30:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:36,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:36,495 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:36,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055657008] [2021-11-25 18:30:36,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055657008] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:36,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:36,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:30:36,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211754705] [2021-11-25 18:30:36,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:36,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:30:36,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:36,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:30:36,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:30:36,498 INFO L87 Difference]: Start difference. First operand 17 states and 19 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) [2021-11-25 18:30:36,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:36,524 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-11-25 18:30:36,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:30:36,528 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 [2021-11-25 18:30:36,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:36,528 INFO L225 Difference]: With dead ends: 17 [2021-11-25 18:30:36,528 INFO L226 Difference]: Without dead ends: 16 [2021-11-25 18:30:36,529 INFO L932 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 [2021-11-25 18:30:36,531 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:36,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:30:36,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-25 18:30:36,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-25 18:30:36,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:36,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-11-25 18:30:36,537 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 6 [2021-11-25 18:30:36,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:36,538 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-11-25 18:30:36,538 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) [2021-11-25 18:30:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-25 18:30:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 18:30:36,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:36,539 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-11-25 18:30:36,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:30:36,539 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-25 18:30:36,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:36,540 INFO L85 PathProgramCache]: Analyzing trace with hash 688900812, now seen corresponding path program 1 times [2021-11-25 18:30:36,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:36,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384720221] [2021-11-25 18:30:36,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:36,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:36,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:36,600 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:36,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384720221] [2021-11-25 18:30:36,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384720221] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:30:36,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526641] [2021-11-25 18:30:36,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:36,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:36,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:36,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:36,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:30:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:36,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:30:36,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:36,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:36,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:36,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526641] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:30:36,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [248840161] [2021-11-25 18:30:36,850 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 18:30:36,850 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:30:36,858 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:30:36,865 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:30:36,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:30:37,122 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:30:37,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [248840161] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:37,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:30:37,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 9 [2021-11-25 18:30:37,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690435314] [2021-11-25 18:30:37,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:37,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:30:37,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:37,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:30:37,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:30:37,288 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2021-11-25 18:30:37,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:37,371 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-11-25 18:30:37,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:30:37,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 9 [2021-11-25 18:30:37,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:37,374 INFO L225 Difference]: With dead ends: 26 [2021-11-25 18:30:37,374 INFO L226 Difference]: Without dead ends: 23 [2021-11-25 18:30:37,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:30:37,382 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:37,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 3 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:30:37,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-25 18:30:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-11-25 18:30:37,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-11-25 18:30:37,389 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 9 [2021-11-25 18:30:37,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:37,389 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-11-25 18:30:37,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2021-11-25 18:30:37,390 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-25 18:30:37,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 18:30:37,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:37,391 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:37,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:37,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:37,618 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-25 18:30:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1040300673, now seen corresponding path program 1 times [2021-11-25 18:30:37,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:37,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487394132] [2021-11-25 18:30:37,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:37,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:30:37,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:37,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487394132] [2021-11-25 18:30:37,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487394132] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:30:37,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659662463] [2021-11-25 18:30:37,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:37,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:37,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:37,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:37,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:30:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:37,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:30:37,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:30:37,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:30:37,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659662463] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:30:37,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1106841309] [2021-11-25 18:30:37,860 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-25 18:30:37,860 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:30:37,861 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:30:37,861 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:30:37,861 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:30:38,090 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:30:38,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1106841309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:38,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:30:38,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 3, 3] total 13 [2021-11-25 18:30:38,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683981183] [2021-11-25 18:30:38,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:38,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 18:30:38,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:38,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 18:30:38,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:30:38,263 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:38,342 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2021-11-25 18:30:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:30:38,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 13 [2021-11-25 18:30:38,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:38,343 INFO L225 Difference]: With dead ends: 24 [2021-11-25 18:30:38,344 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 18:30:38,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-25 18:30:38,345 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:38,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:30:38,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 18:30:38,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 18:30:38,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:38,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 18:30:38,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-25 18:30:38,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:38,348 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 18:30:38,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 18:30:38,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 18:30:38,351 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-25 18:30:38,352 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-25 18:30:38,353 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-25 18:30:38,353 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-25 18:30:38,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:38,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:38,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 18:30:38,643 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-11-25 18:30:38,643 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 18:30:38,644 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-25 18:30:38,644 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-11-25 18:30:38,644 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-11-25 18:30:38,644 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 26) no Hoare annotation was computed. [2021-11-25 18:30:38,645 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 20 27) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse1 (<= 0 |ULTIMATE.start_main_~m~0#1|)) (.cse2 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~m~0#1| 2147483647))) (or (and .cse0 .cse1 .cse2 (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~n~0#1|) .cse4 (<= |ULTIMATE.start_main_~j~0#1| 0)))) [2021-11-25 18:30:38,645 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 28) no Hoare annotation was computed. [2021-11-25 18:30:38,645 INFO L861 garLoopResultBuilder]: At program point L17-1(lines 17 28) the Hoare annotation is: true [2021-11-25 18:30:38,645 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-11-25 18:30:38,645 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-25 18:30:38,646 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 18:30:38,646 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-11-25 18:30:38,646 INFO L858 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-11-25 18:30:38,649 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-25 18:30:38,651 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:30:38,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:30:38 BoogieIcfgContainer [2021-11-25 18:30:38,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:30:38,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:30:38,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:30:38,681 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:30:38,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:35" (3/4) ... [2021-11-25 18:30:38,686 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 18:30:38,700 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-25 18:30:38,700 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 18:30:38,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 18:30:38,738 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:30:38,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:30:38,739 INFO L158 Benchmark]: Toolchain (without parser) took 3410.49ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 50.0MB in the beginning and 56.1MB in the end (delta: -6.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-11-25 18:30:38,739 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 94.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:30:38,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.59ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.7MB in the beginning and 83.6MB in the end (delta: -33.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-25 18:30:38,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.50ms. Allocated memory is still 104.9MB. Free memory was 83.6MB in the beginning and 82.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:30:38,741 INFO L158 Benchmark]: Boogie Preprocessor took 20.21ms. Allocated memory is still 104.9MB. Free memory was 82.0MB in the beginning and 81.3MB in the end (delta: 691.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:30:38,741 INFO L158 Benchmark]: RCFGBuilder took 265.48ms. Allocated memory is still 104.9MB. Free memory was 81.3MB in the beginning and 72.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 18:30:38,741 INFO L158 Benchmark]: TraceAbstraction took 2751.49ms. Allocated memory is still 104.9MB. Free memory was 71.6MB in the beginning and 58.2MB in the end (delta: 13.3MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-11-25 18:30:38,742 INFO L158 Benchmark]: Witness Printer took 58.75ms. Allocated memory is still 104.9MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:30:38,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 94.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.59ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.7MB in the beginning and 83.6MB in the end (delta: -33.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.50ms. Allocated memory is still 104.9MB. Free memory was 83.6MB in the beginning and 82.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.21ms. Allocated memory is still 104.9MB. Free memory was 82.0MB in the beginning and 81.3MB in the end (delta: 691.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 265.48ms. Allocated memory is still 104.9MB. Free memory was 81.3MB in the beginning and 72.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2751.49ms. Allocated memory is still 104.9MB. Free memory was 71.6MB in the beginning and 58.2MB in the end (delta: 13.3MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 58.75ms. Allocated memory is still 104.9MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 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 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 24 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 49 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 43 HoareAnnotationTreeSize, 2 FomulaSimplifications, 30 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 45 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 SizeOfPredicates, 0 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 7/30 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: OVERALL_TIME: 0.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 47, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 45, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 79, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 0.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 104, DAG_COMPRESSION_RETAINED_NODES: 53, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((n <= 2147483647 && 0 <= m) && 0 <= j) && i < n) && 0 <= i) && m <= 2147483647) || ((((((n <= 2147483647 && 0 <= m) && 0 <= j) && 0 <= i) && 0 <= n) && m <= 2147483647) && j <= 0) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-25 18:30:38,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1456ef8-7824-4806-8021-21702941d66f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE