./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba --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 033772d605bbfacd7bdbacf0756e3bc9cfb2f8cbffe91002f61ae4b41e344064 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:28:17,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:28:17,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:28:17,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:28:17,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:28:17,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:28:17,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:28:17,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:28:17,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:28:17,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:28:17,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:28:17,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:28:17,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:28:17,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:28:17,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:28:17,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:28:17,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:28:17,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:28:17,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:28:17,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:28:17,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:28:17,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:28:17,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:28:17,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:28:17,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:28:17,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:28:17,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:28:17,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:28:17,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:28:17,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:28:17,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:28:17,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:28:17,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:28:17,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:28:17,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:28:17,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:28:17,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:28:17,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:28:17,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:28:17,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:28:17,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:28:17,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:28:17,567 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:28:17,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:28:17,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:28:17,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:28:17,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:28:17,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:28:17,570 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:28:17,570 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:28:17,570 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:28:17,571 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:28:17,571 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:28:17,571 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:28:17,571 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:28:17,572 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:28:17,572 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:28:17,572 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:28:17,572 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:28:17,573 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:28:17,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:28:17,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:28:17,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:28:17,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:28:17,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:28:17,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:28:17,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:28:17,575 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:28:17,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:28:17,576 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:28:17,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:28:17,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:28:17,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:28:17,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:28:17,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:28:17,577 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:28:17,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:28:17,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:28:17,578 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:28:17,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:28:17,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:28:17,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:28:17,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 033772d605bbfacd7bdbacf0756e3bc9cfb2f8cbffe91002f61ae4b41e344064 [2022-11-22 01:28:17,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:28:17,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:28:17,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:28:17,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:28:17,907 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:28:17,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2022-11-22 01:28:21,067 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:28:21,250 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:28:21,250 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2022-11-22 01:28:21,262 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/data/15b43d0fd/0ca537910213456da20278612d275060/FLAG3d4665731 [2022-11-22 01:28:21,278 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/data/15b43d0fd/0ca537910213456da20278612d275060 [2022-11-22 01:28:21,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:28:21,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:28:21,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:28:21,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:28:21,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:28:21,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377c65ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21, skipping insertion in model container [2022-11-22 01:28:21,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:28:21,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:28:21,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:28:21,496 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:28:21,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:28:21,518 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:28:21,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21 WrapperNode [2022-11-22 01:28:21,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:28:21,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:28:21,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:28:21,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:28:21,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,544 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-22 01:28:21,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:28:21,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:28:21,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:28:21,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:28:21,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,563 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:28:21,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:28:21,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:28:21,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:28:21,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (1/1) ... [2022-11-22 01:28:21,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:28:21,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:21,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:28:21,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:28:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:28:21,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:28:21,719 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:28:21,721 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:28:21,804 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:28:21,823 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:28:21,823 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:28:21,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:28:21 BoogieIcfgContainer [2022-11-22 01:28:21,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:28:21,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:28:21,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:28:21,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:28:21,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:28:21" (1/3) ... [2022-11-22 01:28:21,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffaf221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:28:21, skipping insertion in model container [2022-11-22 01:28:21,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:28:21" (2/3) ... [2022-11-22 01:28:21,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffaf221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:28:21, skipping insertion in model container [2022-11-22 01:28:21,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:28:21" (3/3) ... [2022-11-22 01:28:21,836 INFO L112 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2022-11-22 01:28:21,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:28:21,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 01:28:21,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:28:21,918 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62162b8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:28:21,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 01:28:21,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 01:28:21,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:21,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 01:28:21,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:21,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:21,937 INFO L85 PathProgramCache]: Analyzing trace with hash 57052, now seen corresponding path program 1 times [2022-11-22 01:28:21,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:21,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143611218] [2022-11-22 01:28:21,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:21,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:22,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:22,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:22,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143611218] [2022-11-22 01:28:22,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143611218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:22,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:22,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:28:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314437089] [2022-11-22 01:28:22,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:22,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:28:22,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:22,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:28:22,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:28:22,148 INFO L87 Difference]: Start difference. First operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-11-22 01:28:22,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:22,197 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2022-11-22 01:28:22,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:28:22,201 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 [2022-11-22 01:28:22,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:22,209 INFO L225 Difference]: With dead ends: 16 [2022-11-22 01:28:22,209 INFO L226 Difference]: Without dead ends: 13 [2022-11-22 01:28:22,212 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:28:22,216 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:22,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:28:22,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-22 01:28:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-11-22 01:28:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.5) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:22,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-22 01:28:22,290 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2022-11-22 01:28:22,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:22,291 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-22 01:28:22,291 INFO L496 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) [2022-11-22 01:28:22,292 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-22 01:28:22,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:28:22,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:22,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:28:22,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:28:22,308 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:22,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:22,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1768657, now seen corresponding path program 1 times [2022-11-22 01:28:22,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:22,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988731376] [2022-11-22 01:28:22,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:22,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:22,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:22,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988731376] [2022-11-22 01:28:22,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988731376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:22,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:22,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:28:22,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646397837] [2022-11-22 01:28:22,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:22,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:28:22,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:22,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:28:22,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:28:22,361 INFO L87 Difference]: Start difference. First operand 12 states and 12 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) [2022-11-22 01:28:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:22,412 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-22 01:28:22,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:28:22,413 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 [2022-11-22 01:28:22,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:22,414 INFO L225 Difference]: With dead ends: 17 [2022-11-22 01:28:22,414 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 01:28:22,414 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:28:22,416 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:22,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:28:22,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 01:28:22,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-22 01:28:22,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:22,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-22 01:28:22,421 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2022-11-22 01:28:22,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:22,422 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-22 01:28:22,422 INFO L496 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) [2022-11-22 01:28:22,423 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-22 01:28:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:28:22,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:22,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:28:22,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:28:22,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:22,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:22,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1699680883, now seen corresponding path program 1 times [2022-11-22 01:28:22,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:22,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131440818] [2022-11-22 01:28:22,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:22,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:22,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:22,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131440818] [2022-11-22 01:28:22,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131440818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:22,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:22,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:28:22,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55181225] [2022-11-22 01:28:22,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:22,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:28:22,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:22,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:28:22,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:28:22,473 INFO L87 Difference]: Start difference. First operand 14 states and 14 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) [2022-11-22 01:28:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:22,490 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-22 01:28:22,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:28:22,520 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 [2022-11-22 01:28:22,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:22,522 INFO L225 Difference]: With dead ends: 14 [2022-11-22 01:28:22,540 INFO L226 Difference]: Without dead ends: 13 [2022-11-22 01:28:22,547 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:28:22,549 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:22,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:28:22,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-22 01:28:22,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-22 01:28:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:22,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-22 01:28:22,567 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2022-11-22 01:28:22,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:22,567 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-22 01:28:22,568 INFO L496 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) [2022-11-22 01:28:22,568 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-22 01:28:22,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:28:22,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:22,569 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:22,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:28:22,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:22,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:22,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1305757397, now seen corresponding path program 1 times [2022-11-22 01:28:22,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:22,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085799108] [2022-11-22 01:28:22,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:22,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:22,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:22,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085799108] [2022-11-22 01:28:22,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085799108] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:28:22,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213432845] [2022-11-22 01:28:22,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:22,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:22,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:22,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:22,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:28:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:22,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:28:22,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:23,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:28:23,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213432845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:23,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:28:23,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2022-11-22 01:28:23,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078740157] [2022-11-22 01:28:23,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:23,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:28:23,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:23,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:28:23,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:28:23,016 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2022-11-22 01:28:23,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:23,092 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-22 01:28:23,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:28:23,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2022-11-22 01:28:23,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:23,094 INFO L225 Difference]: With dead ends: 14 [2022-11-22 01:28:23,094 INFO L226 Difference]: Without dead ends: 13 [2022-11-22 01:28:23,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:28:23,096 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:23,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:28:23,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-22 01:28:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-11-22 01:28:23,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:23,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-22 01:28:23,107 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-22 01:28:23,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:23,107 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-22 01:28:23,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2022-11-22 01:28:23,112 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-22 01:28:23,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:28:23,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:23,112 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:28:23,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:28:23,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:23,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:23,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1823773688, now seen corresponding path program 1 times [2022-11-22 01:28:23,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:23,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086220385] [2022-11-22 01:28:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:23,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:23,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:23,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:23,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086220385] [2022-11-22 01:28:23,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086220385] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:28:23,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760447852] [2022-11-22 01:28:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:23,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:23,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:23,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:23,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:28:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:23,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:28:23,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:23,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:28:23,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:23,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760447852] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:28:23,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1092728506] [2022-11-22 01:28:23,609 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:28:23,614 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:28:23,620 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:28:23,628 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:28:23,628 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:28:23,919 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:28:24,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1092728506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:24,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:28:24,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 11 [2022-11-22 01:28:24,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106146181] [2022-11-22 01:28:24,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:24,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:28:24,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:28:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:28:24,092 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:24,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:24,246 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-22 01:28:24,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:28:24,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 01:28:24,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:24,247 INFO L225 Difference]: With dead ends: 12 [2022-11-22 01:28:24,248 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 01:28:24,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:28:24,252 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:24,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:28:24,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 01:28:24,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-22 01:28:24,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-11-22 01:28:24,262 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2022-11-22 01:28:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:24,263 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-11-22 01:28:24,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:24,264 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-11-22 01:28:24,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:28:24,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:24,265 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-22 01:28:24,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:24,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:24,471 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:24,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:24,471 INFO L85 PathProgramCache]: Analyzing trace with hash 702409527, now seen corresponding path program 1 times [2022-11-22 01:28:24,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:24,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914288398] [2022-11-22 01:28:24,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:24,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:24,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:24,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914288398] [2022-11-22 01:28:24,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914288398] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:28:24,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131291666] [2022-11-22 01:28:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:24,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:24,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:24,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:24,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:28:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:24,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:28:24,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:24,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:24,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:28:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:24,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131291666] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:28:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1335858496] [2022-11-22 01:28:24,592 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:28:24,592 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:28:24,592 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:28:24,592 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:28:24,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:28:24,724 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:28:24,878 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '339#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483624) (< 2147483646 |ULTIMATE.start_main_~y~0#1|))' at error location [2022-11-22 01:28:24,879 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:28:24,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:28:24,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2022-11-22 01:28:24,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516095810] [2022-11-22 01:28:24,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:28:24,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:28:24,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:24,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:28:24,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:28:24,880 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 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) [2022-11-22 01:28:24,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:24,934 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-11-22 01:28:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:28:24,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 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) Word has length 10 [2022-11-22 01:28:24,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:24,936 INFO L225 Difference]: With dead ends: 27 [2022-11-22 01:28:24,937 INFO L226 Difference]: Without dead ends: 26 [2022-11-22 01:28:24,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:28:24,938 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:24,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:28:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-22 01:28:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-22 01:28:24,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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) [2022-11-22 01:28:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2022-11-22 01:28:24,944 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 10 [2022-11-22 01:28:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:24,944 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2022-11-22 01:28:24,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 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) [2022-11-22 01:28:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2022-11-22 01:28:24,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-22 01:28:24,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:24,945 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1] [2022-11-22 01:28:24,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:25,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-22 01:28:25,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:25,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:25,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1351347390, now seen corresponding path program 2 times [2022-11-22 01:28:25,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:25,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931150583] [2022-11-22 01:28:25,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:25,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:25,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:25,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931150583] [2022-11-22 01:28:25,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931150583] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:28:25,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005367686] [2022-11-22 01:28:25,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:28:25,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:25,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:25,323 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:25,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:28:25,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-22 01:28:25,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:28:25,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:28:25,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:25,425 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:25,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:28:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:25,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005367686] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:28:25,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168848960] [2022-11-22 01:28:25,523 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:28:25,523 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:28:25,524 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:28:25,524 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:28:25,524 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:28:25,602 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:28:25,809 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '563#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483624) (< 2147483646 |ULTIMATE.start_main_~y~0#1|))' at error location [2022-11-22 01:28:25,809 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:28:25,809 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:28:25,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-22 01:28:25,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678988166] [2022-11-22 01:28:25,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:28:25,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:28:25,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:25,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:28:25,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:28:25,814 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:25,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:25,903 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2022-11-22 01:28:25,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:28:25,903 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-22 01:28:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:25,906 INFO L225 Difference]: With dead ends: 57 [2022-11-22 01:28:25,906 INFO L226 Difference]: Without dead ends: 56 [2022-11-22 01:28:25,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 58 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:28:25,908 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:25,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 12 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:28:25,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-22 01:28:25,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-22 01:28:25,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 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) [2022-11-22 01:28:25,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2022-11-22 01:28:25,929 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 25 [2022-11-22 01:28:25,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:25,929 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2022-11-22 01:28:25,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:28:25,930 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2022-11-22 01:28:25,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-22 01:28:25,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:25,931 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1] [2022-11-22 01:28:25,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:26,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:26,137 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:26,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1872734110, now seen corresponding path program 3 times [2022-11-22 01:28:26,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:26,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141072620] [2022-11-22 01:28:26,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:26,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:26,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:26,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141072620] [2022-11-22 01:28:26,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141072620] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:28:26,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698234528] [2022-11-22 01:28:26,511 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:28:26,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:26,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:26,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:26,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:28:26,569 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:28:26,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:28:26,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:28:26,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:26,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:28:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:26,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698234528] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:28:26,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [893020132] [2022-11-22 01:28:26,988 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:28:26,988 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:28:26,988 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:28:26,989 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:28:26,990 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:28:27,056 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:28:27,413 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1051#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483624) (< 2147483646 |ULTIMATE.start_main_~y~0#1|))' at error location [2022-11-22 01:28:27,413 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:28:27,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:28:27,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-11-22 01:28:27,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51593542] [2022-11-22 01:28:27,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:28:27,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 01:28:27,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:27,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 01:28:27,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2022-11-22 01:28:27,415 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 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) [2022-11-22 01:28:27,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:27,594 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2022-11-22 01:28:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 01:28:27,594 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 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 55 [2022-11-22 01:28:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:27,595 INFO L225 Difference]: With dead ends: 117 [2022-11-22 01:28:27,595 INFO L226 Difference]: Without dead ends: 116 [2022-11-22 01:28:27,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 136 SyntacticMatches, 11 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2022-11-22 01:28:27,597 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:27,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 24 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:28:27,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-22 01:28:27,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-11-22 01:28:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 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) [2022-11-22 01:28:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2022-11-22 01:28:27,610 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 55 [2022-11-22 01:28:27,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:27,610 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2022-11-22 01:28:27,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 states have internal predecessors, (110), 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) [2022-11-22 01:28:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2022-11-22 01:28:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:28:27,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:27,613 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1] [2022-11-22 01:28:27,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:27,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:27,820 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:27,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:27,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1094826658, now seen corresponding path program 4 times [2022-11-22 01:28:27,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:27,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577412354] [2022-11-22 01:28:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:27,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:28,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:28,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:28,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577412354] [2022-11-22 01:28:28,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577412354] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:28:28,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357780110] [2022-11-22 01:28:28,563 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:28:28,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:28,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:28,564 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:28,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:28:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:28,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-22 01:28:28,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:28,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:28,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:28:29,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:29,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357780110] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:28:29,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1453829604] [2022-11-22 01:28:29,831 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:28:29,831 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:28:29,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:28:29,832 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:28:29,832 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:28:29,886 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:28:30,783 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2067#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483624) (< 2147483646 |ULTIMATE.start_main_~y~0#1|))' at error location [2022-11-22 01:28:30,783 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:28:30,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:28:30,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-11-22 01:28:30,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211058829] [2022-11-22 01:28:30,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:28:30,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-22 01:28:30,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:30,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-22 01:28:30,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1142, Invalid=1614, Unknown=0, NotChecked=0, Total=2756 [2022-11-22 01:28:30,787 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 47 states have internal predecessors, (230), 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) [2022-11-22 01:28:31,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:31,108 INFO L93 Difference]: Finished difference Result 237 states and 260 transitions. [2022-11-22 01:28:31,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-22 01:28:31,109 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 47 states have internal predecessors, (230), 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 115 [2022-11-22 01:28:31,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:31,117 INFO L225 Difference]: With dead ends: 237 [2022-11-22 01:28:31,117 INFO L226 Difference]: Without dead ends: 236 [2022-11-22 01:28:31,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 292 SyntacticMatches, 23 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1922 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1142, Invalid=1614, Unknown=0, NotChecked=0, Total=2756 [2022-11-22 01:28:31,121 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 46 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:31,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 48 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:28:31,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-22 01:28:31,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-11-22 01:28:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.004255319148936) internal successors, (236), 235 states have internal predecessors, (236), 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) [2022-11-22 01:28:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2022-11-22 01:28:31,170 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 115 [2022-11-22 01:28:31,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:31,172 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2022-11-22 01:28:31,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 47 states have internal predecessors, (230), 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) [2022-11-22 01:28:31,172 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2022-11-22 01:28:31,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-22 01:28:31,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:31,186 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1] [2022-11-22 01:28:31,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:31,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:31,392 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:28:31,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:31,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1012932830, now seen corresponding path program 5 times [2022-11-22 01:28:31,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:31,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665426454] [2022-11-22 01:28:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:31,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:28:34,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:34,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665426454] [2022-11-22 01:28:34,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665426454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:28:34,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590784293] [2022-11-22 01:28:34,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:28:34,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:28:34,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:28:34,019 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:28:34,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:28:34,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-22 01:28:34,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:28:34,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:28:34,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:28:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 737 proven. 21 refuted. 0 times theorem prover too weak. 4601 trivial. 0 not checked. [2022-11-22 01:28:34,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:28:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 737 proven. 21 refuted. 0 times theorem prover too weak. 4601 trivial. 0 not checked. [2022-11-22 01:28:34,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590784293] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:28:34,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1737864547] [2022-11-22 01:28:34,805 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:28:34,806 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:28:34,806 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:28:34,806 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:28:34,807 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:28:34,857 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:28:37,978 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4106#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483624) (< 2147483646 |ULTIMATE.start_main_~y~0#1|))' at error location [2022-11-22 01:28:37,978 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:28:37,978 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:28:37,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 8, 8] total 62 [2022-11-22 01:28:37,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037668409] [2022-11-22 01:28:37,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:28:37,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-11-22 01:28:37,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:37,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-11-22 01:28:37,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1556, Invalid=3000, Unknown=0, NotChecked=0, Total=4556 [2022-11-22 01:28:37,983 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand has 63 states, 62 states have (on average 4.467741935483871) internal successors, (277), 63 states have internal predecessors, (277), 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) [2022-11-22 01:28:45,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:45,186 INFO L93 Difference]: Finished difference Result 243 states and 244 transitions. [2022-11-22 01:28:45,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-11-22 01:28:45,187 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 4.467741935483871) internal successors, (277), 63 states have internal predecessors, (277), 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 235 [2022-11-22 01:28:45,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:45,188 INFO L225 Difference]: With dead ends: 243 [2022-11-22 01:28:45,188 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:28:45,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 637 SyntacticMatches, 47 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16506 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=12307, Invalid=32425, Unknown=0, NotChecked=0, Total=44732 [2022-11-22 01:28:45,201 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 484 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:45,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 0 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:28:45,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:28:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:28:45,203 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) [2022-11-22 01:28:45,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:28:45,203 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2022-11-22 01:28:45,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:45,203 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:28:45,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 4.467741935483871) internal successors, (277), 63 states have internal predecessors, (277), 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) [2022-11-22 01:28:45,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:28:45,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:28:45,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-22 01:28:45,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-22 01:28:45,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-22 01:28:45,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-22 01:28:45,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:28:45,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 01:28:45,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:28:46,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-22 01:28:46,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:28:46,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-22 01:28:46,080 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-22 01:28:46,080 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-11-22 01:28:46,081 INFO L895 garLoopResultBuilder]: At program point L17-2(lines 17 20) the Hoare annotation is: (let ((.cse1 (<= 23 |ULTIMATE.start_main_~y~0#1|)) (.cse2 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) (.cse3 (<= |ULTIMATE.start_main_~y~0#1| 23))) (let ((.cse0 (or (and .cse1 .cse2 .cse3) (and (<= 24 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))))) (or (and (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (<= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|) 2147483650) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 24) .cse0 (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) 2147483648)) (and .cse1 (<= |ULTIMATE.start_main_~x~0#1| 2147483647) .cse2 .cse3)))) [2022-11-22 01:28:46,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-22 01:28:46,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-22 01:28:46,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:28:46,082 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-22 01:28:46,082 INFO L899 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2022-11-22 01:28:46,086 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1] [2022-11-22 01:28:46,089 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:28:46,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:28:46 BoogieIcfgContainer [2022-11-22 01:28:46,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:28:46,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:28:46,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:28:46,109 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:28:46,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:28:21" (3/4) ... [2022-11-22 01:28:46,113 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:28:46,124 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-22 01:28:46,125 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 01:28:46,125 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 01:28:46,160 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:28:46,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:28:46,161 INFO L158 Benchmark]: Toolchain (without parser) took 24879.20ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 106.7MB in the beginning and 154.3MB in the end (delta: -47.6MB). Peak memory consumption was 99.9MB. Max. memory is 16.1GB. [2022-11-22 01:28:46,161 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:28:46,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.52ms. Allocated memory is still 151.0MB. Free memory was 106.3MB in the beginning and 97.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 01:28:46,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.09ms. Allocated memory is still 151.0MB. Free memory was 97.1MB in the beginning and 95.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:28:46,163 INFO L158 Benchmark]: Boogie Preprocessor took 19.74ms. Allocated memory is still 151.0MB. Free memory was 95.8MB in the beginning and 95.0MB in the end (delta: 796.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:28:46,164 INFO L158 Benchmark]: RCFGBuilder took 260.22ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 85.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:28:46,165 INFO L158 Benchmark]: TraceAbstraction took 24279.07ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 84.6MB in the beginning and 156.4MB in the end (delta: -71.8MB). Peak memory consumption was 141.9MB. Max. memory is 16.1GB. [2022-11-22 01:28:46,166 INFO L158 Benchmark]: Witness Printer took 52.02ms. Allocated memory is still 297.8MB. Free memory was 156.4MB in the beginning and 154.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:28:46,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.52ms. Allocated memory is still 151.0MB. Free memory was 106.3MB in the beginning and 97.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.09ms. Allocated memory is still 151.0MB. Free memory was 97.1MB in the beginning and 95.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.74ms. Allocated memory is still 151.0MB. Free memory was 95.8MB in the beginning and 95.0MB in the end (delta: 796.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 260.22ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 85.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 24279.07ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 84.6MB in the beginning and 156.4MB in the end (delta: -71.8MB). Peak memory consumption was 141.9MB. Max. memory is 16.1GB. * Witness Printer took 52.02ms. Allocated memory is still 297.8MB. Free memory was 156.4MB in the beginning and 154.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 24.2s, OverallIterations: 10, TraceHistogramMax: 47, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 598 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 598 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 318 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 734 IncrementalHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 318 mSolverCounterUnsat, 18 mSDtfsCounter, 734 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1589 GetRequests, 1160 SyntacticMatches, 91 SemanticMatches, 338 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19170 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=9, InterpolantAutomatonStates: 260, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 49 NumberOfFragments, 76 HoareAnnotationTreeSize, 1 FomulaSimplifications, 416 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 1 FomulaSimplificationsInter, 1742 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 927 NumberOfCodeBlocks, 717 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1353 ConstructedInterpolants, 0 QuantifiedInterpolants, 3334 SizeOfPredicates, 3 NumberOfNonLiveVariables, 464 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 23 InterpolantComputations, 4 PerfectInterpolantSequences, 10678/20764 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 9, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 24, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 24, TOOLS_QUANTIFIERELIM_TIME: 0.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 39, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 9, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 78, DAG_COMPRESSION_RETAINED_NODES: 27, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((y <= 2147483646 && 2 * y + x <= 2147483650) && (((23 <= y && 0 <= x + 2147483648) && y <= 23) || (24 <= y && y <= 2147483647))) || ((y <= 24 && (((23 <= y && 0 <= x + 2147483648) && y <= 23) || (24 <= y && y <= 2147483647))) && x + y <= 2147483648)) || (((23 <= y && x <= 2147483647) && 0 <= x + 2147483648) && y <= 23) RESULT: Ultimate proved your program to be correct! [2022-11-22 01:28:46,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94255164-757a-4358-a3dc-89dd70f2cc2e/bin/utaipan-g80aRyZoba/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