./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MenloPark.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/MenloPark.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH --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 6dae4b60aa9efa1955ef5fbb576e87a787ed072bbe9c11eb4417a5220402d102 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:20:55,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:20:55,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:20:55,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:20:55,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:20:55,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:20:55,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:20:55,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:20:55,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:20:55,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:20:55,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:20:55,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:20:55,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:20:55,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:20:55,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:20:55,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:20:55,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:20:55,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:20:55,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:20:55,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:20:55,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:20:55,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:20:55,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:20:55,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:20:55,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:20:55,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:20:55,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:20:55,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:20:55,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:20:55,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:20:55,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:20:55,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:20:55,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:20:55,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:20:55,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:20:55,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:20:55,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:20:55,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:20:55,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:20:55,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:20:55,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:20:55,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-03 04:20:55,517 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:20:55,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:20:55,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:20:55,519 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:20:55,519 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:20:55,519 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:20:55,520 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:20:55,520 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:20:55,520 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:20:55,520 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:20:55,521 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:20:55,521 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:20:55,521 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:20:55,521 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:20:55,522 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:20:55,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:20:55,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:20:55,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:20:55,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:20:55,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:20:55,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:20:55,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:20:55,524 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-03 04:20:55,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:20:55,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:20:55,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:20:55,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:20:55,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:20:55,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:20:55,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:20:55,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:20:55,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:20:55,526 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:20:55,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:20:55,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:20:55,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:20:55,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:20:55,527 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_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dae4b60aa9efa1955ef5fbb576e87a787ed072bbe9c11eb4417a5220402d102 [2021-11-03 04:20:55,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:20:55,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:20:55,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:20:55,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:20:55,783 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:20:55,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/termination-crafted/MenloPark.c [2021-11-03 04:20:55,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/data/2e05e8979/371340d5a5054584a0c455d1fbc63e4b/FLAGd68e2dfa6 [2021-11-03 04:20:56,283 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:20:56,284 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/sv-benchmarks/c/termination-crafted/MenloPark.c [2021-11-03 04:20:56,289 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/data/2e05e8979/371340d5a5054584a0c455d1fbc63e4b/FLAGd68e2dfa6 [2021-11-03 04:20:56,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/data/2e05e8979/371340d5a5054584a0c455d1fbc63e4b [2021-11-03 04:20:56,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:20:56,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:20:56,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:20:56,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:20:56,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:20:56,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f11a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56, skipping insertion in model container [2021-11-03 04:20:56,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:20:56,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:20:56,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:20:56,893 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:20:56,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:20:56,932 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:20:56,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56 WrapperNode [2021-11-03 04:20:56,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:20:56,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:20:56,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:20:56,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:20:56,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:20:56,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:20:56,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:20:56,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:20:56,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:56,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:20:57,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:20:57,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:20:57,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:20:57,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (1/1) ... [2021-11-03 04:20:57,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:20:57,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:20:57,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:20:57,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:20:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:20:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:20:57,299 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:20:57,299 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-03 04:20:57,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:20:57 BoogieIcfgContainer [2021-11-03 04:20:57,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:20:57,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:20:57,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:20:57,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:20:57,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:20:56" (1/3) ... [2021-11-03 04:20:57,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485d03ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:20:57, skipping insertion in model container [2021-11-03 04:20:57,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:56" (2/3) ... [2021-11-03 04:20:57,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485d03ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:20:57, skipping insertion in model container [2021-11-03 04:20:57,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:20:57" (3/3) ... [2021-11-03 04:20:57,310 INFO L111 eAbstractionObserver]: Analyzing ICFG MenloPark.c [2021-11-03 04:20:57,316 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:20:57,316 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:20:57,363 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:20:57,370 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 [2021-11-03 04:20:57,370 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:20:57,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.875) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-03 04:20:57,389 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:57,389 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-03 04:20:57,390 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-03 04:20:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-11-03 04:20:57,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:20:57,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783904571] [2021-11-03 04:20:57,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:57,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:20:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:57,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:57,544 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:20:57,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783904571] [2021-11-03 04:20:57,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783904571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:57,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:57,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:20:57,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105332107] [2021-11-03 04:20:57,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:20:57,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:20:57,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:20:57,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:20:57,568 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.875) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-03 04:20:57,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:57,608 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-11-03 04:20:57,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:20:57,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-03 04:20:57,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:57,618 INFO L225 Difference]: With dead ends: 20 [2021-11-03 04:20:57,618 INFO L226 Difference]: Without dead ends: 17 [2021-11-03 04:20:57,620 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 [2021-11-03 04:20:57,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-03 04:20:57,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-11-03 04:20:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.6) internal successors, (16), 15 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) [2021-11-03 04:20:57,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-03 04:20:57,651 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2021-11-03 04:20:57,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:57,651 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-03 04:20:57,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-03 04:20:57,652 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-03 04:20:57,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 04:20:57,652 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:57,652 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 04:20:57,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:20:57,653 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-03 04:20:57,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:57,654 INFO L85 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-11-03 04:20:57,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:20:57,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219503502] [2021-11-03 04:20:57,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:57,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:20:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:57,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:20:57,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219503502] [2021-11-03 04:20:57,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219503502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:57,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:57,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:20:57,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529762393] [2021-11-03 04:20:57,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:20:57,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:20:57,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:20:57,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:20:57,688 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:57,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:57,729 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-11-03 04:20:57,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:20:57,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-03 04:20:57,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:57,730 INFO L225 Difference]: With dead ends: 22 [2021-11-03 04:20:57,731 INFO L226 Difference]: Without dead ends: 21 [2021-11-03 04:20:57,731 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:20:57,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-03 04:20:57,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-11-03 04:20:57,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 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) [2021-11-03 04:20:57,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-11-03 04:20:57,735 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2021-11-03 04:20:57,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:57,736 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-11-03 04:20:57,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:57,736 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-11-03 04:20:57,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:20:57,737 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:57,737 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:20:57,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:20:57,737 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-03 04:20:57,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2021-11-03 04:20:57,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:20:57,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753745351] [2021-11-03 04:20:57,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:57,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:20:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:57,792 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:20:57,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753745351] [2021-11-03 04:20:57,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753745351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:57,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:57,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:20:57,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375276750] [2021-11-03 04:20:57,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:20:57,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:20:57,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:20:57,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:20:57,810 INFO L87 Difference]: Start difference. First operand 17 states and 17 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) [2021-11-03 04:20:57,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:57,838 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-11-03 04:20:57,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:20:57,838 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 [2021-11-03 04:20:57,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:57,839 INFO L225 Difference]: With dead ends: 20 [2021-11-03 04:20:57,839 INFO L226 Difference]: Without dead ends: 19 [2021-11-03 04:20:57,840 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 [2021-11-03 04:20:57,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-03 04:20:57,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-11-03 04:20:57,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5) internal successors, (18), 17 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) [2021-11-03 04:20:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-11-03 04:20:57,844 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2021-11-03 04:20:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:57,844 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-11-03 04:20:57,844 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) [2021-11-03 04:20:57,845 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-11-03 04:20:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:20:57,845 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:57,845 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:20:57,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:20:57,846 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-03 04:20:57,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2021-11-03 04:20:57,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:20:57,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670846739] [2021-11-03 04:20:57,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:57,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:20:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:57,875 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:20:57,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670846739] [2021-11-03 04:20:57,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670846739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:57,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:57,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:20:57,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702981876] [2021-11-03 04:20:57,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:20:57,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:20:57,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:20:57,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:20:57,879 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-03 04:20:57,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:57,908 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-11-03 04:20:57,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:20:57,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2021-11-03 04:20:57,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:57,909 INFO L225 Difference]: With dead ends: 20 [2021-11-03 04:20:57,910 INFO L226 Difference]: Without dead ends: 19 [2021-11-03 04:20:57,910 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 [2021-11-03 04:20:57,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-03 04:20:57,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-03 04:20:57,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 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) [2021-11-03 04:20:57,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-03 04:20:57,914 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2021-11-03 04:20:57,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:57,915 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-11-03 04:20:57,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-03 04:20:57,915 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-03 04:20:57,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 04:20:57,915 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:57,916 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:20:57,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 04:20:57,916 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-03 04:20:57,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:57,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1366846491, now seen corresponding path program 1 times [2021-11-03 04:20:57,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:20:57,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536133201] [2021-11-03 04:20:57,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:57,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:20:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:57,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:57,962 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:20:57,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536133201] [2021-11-03 04:20:57,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536133201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:57,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:57,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:20:57,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150260154] [2021-11-03 04:20:57,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:20:57,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:20:57,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:20:57,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:20:57,966 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-03 04:20:57,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:57,987 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-11-03 04:20:57,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:20:57,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-03 04:20:57,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:57,989 INFO L225 Difference]: With dead ends: 22 [2021-11-03 04:20:57,989 INFO L226 Difference]: Without dead ends: 21 [2021-11-03 04:20:57,990 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 [2021-11-03 04:20:57,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-03 04:20:57,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-11-03 04:20:57,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 19 states have internal predecessors, (20), 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) [2021-11-03 04:20:57,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-11-03 04:20:57,994 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2021-11-03 04:20:57,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:57,995 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-11-03 04:20:57,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-03 04:20:57,995 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-11-03 04:20:57,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:20:57,996 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:57,996 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:20:57,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 04:20:57,996 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-03 04:20:57,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:57,997 INFO L85 PathProgramCache]: Analyzing trace with hash 577431791, now seen corresponding path program 1 times [2021-11-03 04:20:57,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:20:57,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353210505] [2021-11-03 04:20:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:57,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:20:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:58,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:58,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:20:58,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353210505] [2021-11-03 04:20:58,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353210505] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:58,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:58,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:20:58,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607393698] [2021-11-03 04:20:58,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:20:58,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:20:58,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:20:58,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:20:58,065 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-03 04:20:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:58,090 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-11-03 04:20:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:20:58,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-03 04:20:58,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:58,092 INFO L225 Difference]: With dead ends: 22 [2021-11-03 04:20:58,092 INFO L226 Difference]: Without dead ends: 21 [2021-11-03 04:20:58,092 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 [2021-11-03 04:20:58,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-03 04:20:58,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-03 04:20:58,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 20 states have internal predecessors, (21), 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) [2021-11-03 04:20:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-03 04:20:58,097 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2021-11-03 04:20:58,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:58,097 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-11-03 04:20:58,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-03 04:20:58,098 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-03 04:20:58,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 04:20:58,098 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:58,099 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:20:58,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 04:20:58,099 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-03 04:20:58,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:58,100 INFO L85 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2021-11-03 04:20:58,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:20:58,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734193828] [2021-11-03 04:20:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:58,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:20:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:58,160 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:20:58,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734193828] [2021-11-03 04:20:58,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734193828] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:20:58,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549089835] [2021-11-03 04:20:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:58,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:20:58,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:20:58,173 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:20:58,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 04:20:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:58,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:20:58,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:58,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:58,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:58,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:58,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549089835] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:20:58,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1773575368] [2021-11-03 04:20:58,566 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-03 04:20:58,566 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:20:58,571 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:20:58,576 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:20:58,577 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:20:58,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:20:58,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:20:58,620 INFO L180 QuantifierPusher]: treesize reduction 7, result has 80.6 percent of original size [2021-11-03 04:20:58,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:20:58,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:20:58,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:20:58,656 INFO L180 QuantifierPusher]: treesize reduction 7, result has 86.0 percent of original size [2021-11-03 04:20:58,665 INFO L185 QuantifierPusher]: treesize reduction 23, result has 42.5 percent of original size 17 [2021-11-03 04:20:58,672 INFO L180 QuantifierPusher]: treesize reduction 30, result has 50.8 percent of original size [2021-11-03 04:20:58,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-03 04:20:58,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:20:58,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-11-03 04:20:58,784 INFO L180 QuantifierPusher]: treesize reduction 6, result has 94.1 percent of original size [2021-11-03 04:20:58,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 04:20:58,800 INFO L180 QuantifierPusher]: treesize reduction 11, result has 90.5 percent of original size [2021-11-03 04:20:58,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-03 04:20:58,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:20:58,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-11-03 04:20:58,841 INFO L180 QuantifierPusher]: treesize reduction 6, result has 94.1 percent of original size [2021-11-03 04:20:58,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 04:20:58,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:58,983 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:20:59,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1773575368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:59,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:20:59,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 13 [2021-11-03 04:20:59,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099525738] [2021-11-03 04:20:59,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:20:59,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:20:59,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:20:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:20:59,254 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-11-03 04:20:59,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:59,305 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-11-03 04:20:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:20:59,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 10 [2021-11-03 04:20:59,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:59,307 INFO L225 Difference]: With dead ends: 21 [2021-11-03 04:20:59,307 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 04:20:59,308 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:20:59,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 04:20:59,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 04:20:59,308 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) [2021-11-03 04:20:59,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 04:20:59,308 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-11-03 04:20:59,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:59,309 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 04:20:59,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-11-03 04:20:59,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 04:20:59,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 04:20:59,311 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:20:59,312 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:20:59,312 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:20:59,312 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:20:59,315 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:20:59,315 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:20:59,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:20:59,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:20:59,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 04:20:59,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:20:59,568 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-11-03 04:20:59,569 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 04:20:59,569 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-03 04:20:59,569 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-03 04:20:59,569 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-11-03 04:20:59,569 INFO L857 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-11-03 04:20:59,569 INFO L857 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-11-03 04:20:59,569 INFO L857 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-11-03 04:20:59,570 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-11-03 04:20:59,570 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-03 04:20:59,570 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 04:20:59,570 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-03 04:20:59,570 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-03 04:20:59,570 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-11-03 04:20:59,571 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (<= ULTIMATE.start_main_~z~0 1) (<= 0 (+ ULTIMATE.start_main_~z~0 1)) (<= ULTIMATE.start_main_~y~0 100) (<= 99 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2021-11-03 04:20:59,581 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:20:59,583 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:20:59,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:20:59 BoogieIcfgContainer [2021-11-03 04:20:59,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:20:59,635 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:20:59,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:20:59,636 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:20:59,636 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:20:57" (3/4) ... [2021-11-03 04:20:59,639 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 04:20:59,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-03 04:20:59,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-03 04:20:59,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:20:59,741 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:20:59,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:20:59,742 INFO L168 Benchmark]: Toolchain (without parser) took 3073.58 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 58.1 MB in the beginning and 59.9 MB in the end (delta: -1.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:20:59,742 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:20:59,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.62 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 58.0 MB in the beginning and 98.1 MB in the end (delta: -40.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:20:59,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.36 ms. Allocated memory is still 119.5 MB. Free memory was 98.1 MB in the beginning and 96.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:20:59,743 INFO L168 Benchmark]: Boogie Preprocessor took 25.27 ms. Allocated memory is still 119.5 MB. Free memory was 96.7 MB in the beginning and 95.9 MB in the end (delta: 821.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:20:59,743 INFO L168 Benchmark]: RCFGBuilder took 302.12 ms. Allocated memory is still 119.5 MB. Free memory was 95.9 MB in the beginning and 87.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:20:59,744 INFO L168 Benchmark]: TraceAbstraction took 2331.51 ms. Allocated memory is still 119.5 MB. Free memory was 86.6 MB in the beginning and 62.0 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:20:59,744 INFO L168 Benchmark]: Witness Printer took 105.35 ms. Allocated memory is still 119.5 MB. Free memory was 62.0 MB in the beginning and 59.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:20:59,766 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.62 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 58.0 MB in the beginning and 98.1 MB in the end (delta: -40.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.36 ms. Allocated memory is still 119.5 MB. Free memory was 98.1 MB in the beginning and 96.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.27 ms. Allocated memory is still 119.5 MB. Free memory was 96.7 MB in the beginning and 95.9 MB in the end (delta: 821.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 302.12 ms. Allocated memory is still 119.5 MB. Free memory was 95.9 MB in the beginning and 87.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2331.51 ms. Allocated memory is still 119.5 MB. Free memory was 86.6 MB in the beginning and 62.0 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. * Witness Printer took 105.35 ms. Allocated memory is still 119.5 MB. Free memory was 62.0 MB in the beginning and 59.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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, 15 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 16 SDslu, 25 SDs, 0 SdLazy, 116 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=6, InterpolantAutomatonStates: 26, 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, 7 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 23 HoareAnnotationTreeSize, 1 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 0/6 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[ms]: 417, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 10, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 25, TOOLS_POST_TIME[ms]: 144, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 25, TOOLS_QUANTIFIERELIM_TIME[ms]: 135, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 22, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 40, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME[ms]: 132, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 77, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 6, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 11, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 182, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 181, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 10, DAG_COMPRESSION_PROCESSED_NODES: 102, DAG_COMPRESSION_RETAINED_NODES: 33, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((z <= 1 && 0 <= z + 1) && y <= 100) && 99 <= y) && x <= 2147483647) && 0 <= x + 2147483648 RESULT: Ultimate proved your program to be correct! [2021-11-03 04:20:59,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6188b-963d-4e46-8bfa-2a7d8446f715/bin/utaipan-aC7eJsxGYH/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