./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/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_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/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_62858b22-3a84-4fc1-ac58-e861bfc42935/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 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 --- 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 01:15:28,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:15:28,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:15:28,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:15:28,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:15:28,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:15:28,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:15:28,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:15:28,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:15:28,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:15:28,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:15:28,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:15:28,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:15:28,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:15:28,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:15:28,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:15:28,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:15:28,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:15:28,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:15:28,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:15:28,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:15:28,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:15:28,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:15:28,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:15:28,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:15:28,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:15:28,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:15:28,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:15:28,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:15:28,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:15:28,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:15:28,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:15:28,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:15:28,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:15:28,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:15:28,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:15:28,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:15:28,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:15:28,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:15:28,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:15:28,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:15:28,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:15:28,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:15:28,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:15:28,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:15:28,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:15:28,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:15:28,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:15:28,597 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:15:28,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:15:28,598 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:15:28,598 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:15:28,599 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:15:28,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:15:28,600 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:15:28,600 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:15:28,600 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:15:28,601 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:15:28,601 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:15:28,601 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:15:28,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:15:28,602 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:15:28,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:15:28,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:15:28,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:15:28,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:15:28,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:15:28,604 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:15:28,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:15:28,605 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:15:28,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:15:28,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:15:28,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:15:28,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:15:28,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:15:28,607 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:15:28,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:15:28,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:15:28,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:15:28,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:15:28,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:15:28,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:15:28,608 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_62858b22-3a84-4fc1-ac58-e861bfc42935/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 [2022-11-22 01:15:28,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:15:28,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:15:28,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:15:28,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:15:28,948 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:15:28,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2022-11-22 01:15:32,092 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:15:32,359 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:15:32,360 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2022-11-22 01:15:32,366 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/data/dad9b45ef/c172075b71894f43bf52bd4148a80643/FLAG0e85e4a9e [2022-11-22 01:15:32,380 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/data/dad9b45ef/c172075b71894f43bf52bd4148a80643 [2022-11-22 01:15:32,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:15:32,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:15:32,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:15:32,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:15:32,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:15:32,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d051b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32, skipping insertion in model container [2022-11-22 01:15:32,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:15:32,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:15:32,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:15:32,593 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:15:32,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:15:32,621 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:15:32,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32 WrapperNode [2022-11-22 01:15:32,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:15:32,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:15:32,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:15:32,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:15:32,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,654 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-22 01:15:32,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:15:32,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:15:32,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:15:32,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:15:32,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,679 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:15:32,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:15:32,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:15:32,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:15:32,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (1/1) ... [2022-11-22 01:15:32,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:15:32,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:15:32,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:15:32,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:15:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:15:32,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:15:32,857 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:15:32,859 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:15:32,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:15:33,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:15:33,024 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:15:33,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:15:33 BoogieIcfgContainer [2022-11-22 01:15:33,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:15:33,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:15:33,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:15:33,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:15:33,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:15:32" (1/3) ... [2022-11-22 01:15:33,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3872166b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:15:33, skipping insertion in model container [2022-11-22 01:15:33,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:15:32" (2/3) ... [2022-11-22 01:15:33,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3872166b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:15:33, skipping insertion in model container [2022-11-22 01:15:33,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:15:33" (3/3) ... [2022-11-22 01:15:33,059 INFO L112 eAbstractionObserver]: Analyzing ICFG java_Sequence.c [2022-11-22 01:15:33,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:15:33,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-22 01:15:33,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:15:33,182 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;@52a69029, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:15:33,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 01:15:33,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:33,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 01:15:33,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:33,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 01:15:33,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:33,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:33,204 INFO L85 PathProgramCache]: Analyzing trace with hash 77233, now seen corresponding path program 1 times [2022-11-22 01:15:33,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:33,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048994329] [2022-11-22 01:15:33,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:33,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:33,395 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 01:15:33,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:33,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048994329] [2022-11-22 01:15:33,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048994329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:33,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:15:33,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:15:33,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725399990] [2022-11-22 01:15:33,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:33,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:15:33,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:33,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:15:33,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:15:33,453 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 01:15:33,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:33,542 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-22 01:15:33,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:33,545 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 01:15:33,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:33,557 INFO L225 Difference]: With dead ends: 29 [2022-11-22 01:15:33,559 INFO L226 Difference]: Without dead ends: 25 [2022-11-22 01:15:33,562 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 01:15:33,567 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:33,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 22 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:15:33,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-22 01:15:33,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-11-22 01:15:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:33,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-22 01:15:33,606 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 3 [2022-11-22 01:15:33,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:33,607 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-22 01:15:33,608 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 01:15:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-22 01:15:33,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:15:33,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:33,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:15:33,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:15:33,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:33,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:33,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2394268, now seen corresponding path program 1 times [2022-11-22 01:15:33,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:33,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721149398] [2022-11-22 01:15:33,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:33,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:33,666 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 01:15:33,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:33,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721149398] [2022-11-22 01:15:33,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721149398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:33,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:15:33,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:15:33,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273656044] [2022-11-22 01:15:33,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:33,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:15:33,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:33,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:15:33,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:15:33,671 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 01:15:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:33,708 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-11-22 01:15:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:33,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 01:15:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:33,710 INFO L225 Difference]: With dead ends: 23 [2022-11-22 01:15:33,710 INFO L226 Difference]: Without dead ends: 21 [2022-11-22 01:15:33,713 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 01:15:33,715 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:33,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:15:33,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-22 01:15:33,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-22 01:15:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 20 states have internal predecessors, (23), 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 01:15:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-22 01:15:33,723 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 4 [2022-11-22 01:15:33,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:33,723 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-22 01:15:33,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 01:15:33,724 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-22 01:15:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:15:33,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:33,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:15:33,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:15:33,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:33,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:33,726 INFO L85 PathProgramCache]: Analyzing trace with hash 74222355, now seen corresponding path program 1 times [2022-11-22 01:15:33,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:33,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81282590] [2022-11-22 01:15:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:33,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:33,791 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 01:15:33,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:33,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81282590] [2022-11-22 01:15:33,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81282590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:33,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:15:33,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:15:33,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678718342] [2022-11-22 01:15:33,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:33,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:15:33,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:33,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:15:33,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:15:33,795 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:33,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:33,813 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-11-22 01:15:33,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:33,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:15:33,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:33,815 INFO L225 Difference]: With dead ends: 33 [2022-11-22 01:15:33,815 INFO L226 Difference]: Without dead ends: 22 [2022-11-22 01:15:33,815 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 01:15:33,816 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:33,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:15:33,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-22 01:15:33,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2022-11-22 01:15:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 20 states have internal predecessors, (22), 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 01:15:33,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-22 01:15:33,827 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 5 [2022-11-22 01:15:33,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:33,828 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-22 01:15:33,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:33,828 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-22 01:15:33,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:15:33,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:33,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:15:33,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:15:33,830 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:33,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:33,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1994074242, now seen corresponding path program 1 times [2022-11-22 01:15:33,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:33,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555158543] [2022-11-22 01:15:33,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:33,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:33,871 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 01:15:33,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:33,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555158543] [2022-11-22 01:15:33,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555158543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:33,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:15:33,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:15:33,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683683239] [2022-11-22 01:15:33,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:33,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:15:33,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:33,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:15:33,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:15:33,874 INFO L87 Difference]: Start difference. First operand 21 states and 22 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 01:15:33,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:33,886 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-22 01:15:33,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:33,887 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 01:15:33,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:33,887 INFO L225 Difference]: With dead ends: 21 [2022-11-22 01:15:33,888 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 01:15:33,888 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 01:15:33,889 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:33,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 11 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:15:33,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 01:15:33,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-22 01:15:33,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:33,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-22 01:15:33,894 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 6 [2022-11-22 01:15:33,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:33,895 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-22 01:15:33,895 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 01:15:33,895 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-22 01:15:33,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:15:33,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:33,896 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:15:33,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:15:33,896 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:33,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:33,897 INFO L85 PathProgramCache]: Analyzing trace with hash -749931232, now seen corresponding path program 1 times [2022-11-22 01:15:33,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:33,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437414456] [2022-11-22 01:15:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:33,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:33,938 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 01:15:33,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:33,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437414456] [2022-11-22 01:15:33,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437414456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:15:33,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014500180] [2022-11-22 01:15:33,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:33,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:33,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:15:33,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:15:33,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:15:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:33,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:15:33,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:15:34,048 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 01:15:34,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:15:34,114 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 01:15:34,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014500180] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:15:34,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [909097413] [2022-11-22 01:15:34,139 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:15:34,139 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:15:34,142 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:15:34,149 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:15:34,149 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:15:34,360 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:15:34,594 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '304#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:15:34,594 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:15:34,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:15:34,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2022-11-22 01:15:34,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420335170] [2022-11-22 01:15:34,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:15:34,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:15:34,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:34,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:15:34,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:15:34,596 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:34,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:34,648 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2022-11-22 01:15:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:15:34,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 01:15:34,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:34,650 INFO L225 Difference]: With dead ends: 53 [2022-11-22 01:15:34,650 INFO L226 Difference]: Without dead ends: 51 [2022-11-22 01:15:34,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:15:34,651 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 30 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:34,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 42 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:15:34,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-22 01:15:34,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2022-11-22 01:15:34,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.375) internal successors, (55), 44 states have internal predecessors, (55), 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 01:15:34,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2022-11-22 01:15:34,659 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 8 [2022-11-22 01:15:34,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:34,659 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2022-11-22 01:15:34,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:34,660 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2022-11-22 01:15:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:15:34,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:34,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-22 01:15:34,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:15:34,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:34,867 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:34,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:34,868 INFO L85 PathProgramCache]: Analyzing trace with hash 870593218, now seen corresponding path program 1 times [2022-11-22 01:15:34,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:34,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882287732] [2022-11-22 01:15:34,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:34,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:34,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:15:34,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:34,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882287732] [2022-11-22 01:15:34,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882287732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:34,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:15:34,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:15:34,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810069513] [2022-11-22 01:15:34,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:34,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:15:34,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:34,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:15:34,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:15:34,929 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:34,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:34,948 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2022-11-22 01:15:34,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:34,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 01:15:34,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:34,950 INFO L225 Difference]: With dead ends: 45 [2022-11-22 01:15:34,950 INFO L226 Difference]: Without dead ends: 44 [2022-11-22 01:15:34,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:15:34,951 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:34,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:15:34,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-22 01:15:34,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-22 01:15:34,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 40 states have (on average 1.3) internal successors, (52), 43 states have internal predecessors, (52), 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 01:15:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2022-11-22 01:15:34,958 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 10 [2022-11-22 01:15:34,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:34,959 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2022-11-22 01:15:34,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:34,959 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-11-22 01:15:34,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:15:34,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:34,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:15:34,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:15:34,960 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:34,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:34,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1257035288, now seen corresponding path program 1 times [2022-11-22 01:15:34,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:34,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123581188] [2022-11-22 01:15:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:34,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:35,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:35,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:35,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123581188] [2022-11-22 01:15:35,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123581188] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:15:35,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109082436] [2022-11-22 01:15:35,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:35,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:35,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:15:35,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:15:35,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:15:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:35,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:15:35,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:15:35,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:15:35,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:15:35,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109082436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:35,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:15:35,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-22 01:15:35,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103534206] [2022-11-22 01:15:35,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:35,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:15:35,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:15:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:15:35,074 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 01:15:35,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:35,098 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2022-11-22 01:15:35,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:35,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 01:15:35,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:35,101 INFO L225 Difference]: With dead ends: 58 [2022-11-22 01:15:35,101 INFO L226 Difference]: Without dead ends: 57 [2022-11-22 01:15:35,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:15:35,102 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:35,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:15:35,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-22 01:15:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2022-11-22 01:15:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.24) internal successors, (62), 53 states have internal predecessors, (62), 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 01:15:35,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-11-22 01:15:35,111 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 11 [2022-11-22 01:15:35,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:35,111 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-11-22 01:15:35,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 01:15:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-11-22 01:15:35,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:15:35,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:35,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:15:35,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:15:35,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:35,320 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:35,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:35,320 INFO L85 PathProgramCache]: Analyzing trace with hash 313388334, now seen corresponding path program 1 times [2022-11-22 01:15:35,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:35,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394198460] [2022-11-22 01:15:35,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:35,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:35,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:35,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394198460] [2022-11-22 01:15:35,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394198460] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:15:35,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830191368] [2022-11-22 01:15:35,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:35,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:35,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:15:35,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:15:35,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:15:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:35,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:15:35,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:15:35,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:15:35,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:15:35,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830191368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:35,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:15:35,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-22 01:15:35,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215894831] [2022-11-22 01:15:35,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:35,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:15:35,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:35,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:15:35,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:15:35,455 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 01:15:35,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:35,481 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2022-11-22 01:15:35,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:35,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) Word has length 12 [2022-11-22 01:15:35,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:35,482 INFO L225 Difference]: With dead ends: 54 [2022-11-22 01:15:35,483 INFO L226 Difference]: Without dead ends: 53 [2022-11-22 01:15:35,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:15:35,484 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:35,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:15:35,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-22 01:15:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-22 01:15:35,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.18) internal successors, (59), 52 states have internal predecessors, (59), 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 01:15:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-11-22 01:15:35,496 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 12 [2022-11-22 01:15:35,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:35,497 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-11-22 01:15:35,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 01:15:35,497 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-11-22 01:15:35,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 01:15:35,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:35,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:15:35,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:15:35,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:35,699 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:35,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:35,699 INFO L85 PathProgramCache]: Analyzing trace with hash 43306418, now seen corresponding path program 1 times [2022-11-22 01:15:35,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:35,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76451162] [2022-11-22 01:15:35,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:35,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:35,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:15:35,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:35,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76451162] [2022-11-22 01:15:35,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76451162] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:15:35,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843185870] [2022-11-22 01:15:35,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:35,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:35,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:15:35,770 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:15:35,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:15:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:35,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:15:35,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:15:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:15:35,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:15:35,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843185870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:35,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:15:35,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-22 01:15:35,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773999881] [2022-11-22 01:15:35,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:35,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:15:35,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:35,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:15:35,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:15:35,819 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:35,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:35,830 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2022-11-22 01:15:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:35,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-22 01:15:35,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:35,831 INFO L225 Difference]: With dead ends: 53 [2022-11-22 01:15:35,832 INFO L226 Difference]: Without dead ends: 52 [2022-11-22 01:15:35,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:15:35,833 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:35,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:15:35,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-22 01:15:35,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 42. [2022-11-22 01:15:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.15) internal successors, (46), 41 states have internal predecessors, (46), 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 01:15:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-22 01:15:35,839 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 16 [2022-11-22 01:15:35,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:35,840 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-22 01:15:35,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:15:35,840 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-22 01:15:35,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-22 01:15:35,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:35,841 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1] [2022-11-22 01:15:35,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:15:36,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 01:15:36,047 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:36,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:36,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1868861553, now seen corresponding path program 2 times [2022-11-22 01:15:36,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:36,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484393939] [2022-11-22 01:15:36,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:36,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:36,141 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:36,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:36,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484393939] [2022-11-22 01:15:36,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484393939] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:15:36,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215059111] [2022-11-22 01:15:36,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:15:36,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:36,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:15:36,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:15:36,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:15:36,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-22 01:15:36,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:15:36,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:15:36,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:15:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:36,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:15:36,376 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:36,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215059111] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:15:36,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1990434178] [2022-11-22 01:15:36,379 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:15:36,379 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:15:36,379 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:15:36,379 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:15:36,380 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:15:36,469 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:15:36,694 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1186#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:15:36,694 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:15:36,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:15:36,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-22 01:15:36,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670846383] [2022-11-22 01:15:36,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:15:36,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:15:36,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:36,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:15:36,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:15:36,696 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 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 01:15:36,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:36,819 INFO L93 Difference]: Finished difference Result 104 states and 124 transitions. [2022-11-22 01:15:36,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:15:36,820 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 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 23 [2022-11-22 01:15:36,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:36,821 INFO L225 Difference]: With dead ends: 104 [2022-11-22 01:15:36,821 INFO L226 Difference]: Without dead ends: 102 [2022-11-22 01:15:36,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:15:36,822 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 94 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:36,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 68 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:15:36,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-22 01:15:36,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-11-22 01:15:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 100 states have (on average 1.12) internal successors, (112), 101 states have internal predecessors, (112), 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 01:15:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2022-11-22 01:15:36,834 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 23 [2022-11-22 01:15:36,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:36,834 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2022-11-22 01:15:36,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 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 01:15:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2022-11-22 01:15:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 01:15:36,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:36,836 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1] [2022-11-22 01:15:36,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:15:37,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 01:15:37,053 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:37,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:37,053 INFO L85 PathProgramCache]: Analyzing trace with hash 464027793, now seen corresponding path program 3 times [2022-11-22 01:15:37,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:37,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855223957] [2022-11-22 01:15:37,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:37,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:37,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:37,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855223957] [2022-11-22 01:15:37,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855223957] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:15:37,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231333076] [2022-11-22 01:15:37,376 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:15:37,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:37,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:15:37,377 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:15:37,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:15:37,425 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:15:37,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:15:37,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:15:37,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:15:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:37,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:15:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:37,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231333076] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:15:37,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1798824230] [2022-11-22 01:15:37,824 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:15:37,825 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:15:37,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:15:37,825 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:15:37,825 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:15:37,875 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:15:38,049 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1776#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:15:38,050 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:15:38,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:15:38,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-11-22 01:15:38,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304672812] [2022-11-22 01:15:38,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:15:38,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 01:15:38,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:38,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 01:15:38,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=573, Unknown=0, NotChecked=0, Total=870 [2022-11-22 01:15:38,053 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand has 24 states, 23 states have (on average 4.608695652173913) internal successors, (106), 23 states have internal predecessors, (106), 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 01:15:38,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:38,299 INFO L93 Difference]: Finished difference Result 224 states and 268 transitions. [2022-11-22 01:15:38,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 01:15:38,300 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.608695652173913) internal successors, (106), 23 states have internal predecessors, (106), 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 53 [2022-11-22 01:15:38,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:38,301 INFO L225 Difference]: With dead ends: 224 [2022-11-22 01:15:38,301 INFO L226 Difference]: Without dead ends: 222 [2022-11-22 01:15:38,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=573, Unknown=0, NotChecked=0, Total=870 [2022-11-22 01:15:38,303 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 367 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:38,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 140 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:15:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-22 01:15:38,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-11-22 01:15:38,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 1.1090909090909091) internal successors, (244), 221 states have internal predecessors, (244), 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 01:15:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 244 transitions. [2022-11-22 01:15:38,320 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 244 transitions. Word has length 53 [2022-11-22 01:15:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:38,321 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 244 transitions. [2022-11-22 01:15:38,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.608695652173913) internal successors, (106), 23 states have internal predecessors, (106), 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 01:15:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 244 transitions. [2022-11-22 01:15:38,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:15:38,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:38,325 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1] [2022-11-22 01:15:38,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-22 01:15:38,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:38,537 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:38,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:38,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1282504913, now seen corresponding path program 4 times [2022-11-22 01:15:38,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:38,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167659811] [2022-11-22 01:15:38,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:38,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:39,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:39,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167659811] [2022-11-22 01:15:39,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167659811] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:15:39,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584590924] [2022-11-22 01:15:39,260 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:15:39,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:39,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:15:39,263 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:15:39,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:15:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:39,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-22 01:15:39,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:15:39,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:39,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:15:40,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:40,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584590924] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:15:40,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1511571191] [2022-11-22 01:15:40,577 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:15:40,577 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:15:40,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:15:40,578 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:15:40,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:15:40,648 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:15:40,857 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3038#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:15:40,857 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:15:40,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:15:40,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-11-22 01:15:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108953388] [2022-11-22 01:15:40,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:15:40,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-22 01:15:40,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-22 01:15:40,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1149, Invalid=1713, Unknown=0, NotChecked=0, Total=2862 [2022-11-22 01:15:40,863 INFO L87 Difference]: Start difference. First operand 222 states and 244 transitions. Second operand has 48 states, 47 states have (on average 4.808510638297872) internal successors, (226), 47 states have internal predecessors, (226), 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 01:15:41,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:41,568 INFO L93 Difference]: Finished difference Result 464 states and 556 transitions. [2022-11-22 01:15:41,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-22 01:15:41,569 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.808510638297872) internal successors, (226), 47 states have internal predecessors, (226), 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 113 [2022-11-22 01:15:41,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:41,576 INFO L225 Difference]: With dead ends: 464 [2022-11-22 01:15:41,577 INFO L226 Difference]: Without dead ends: 462 [2022-11-22 01:15:41,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1149, Invalid=1713, Unknown=0, NotChecked=0, Total=2862 [2022-11-22 01:15:41,580 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 809 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:41,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 282 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:15:41,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-11-22 01:15:41,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2022-11-22 01:15:41,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 460 states have (on average 1.1043478260869566) internal successors, (508), 461 states have internal predecessors, (508), 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 01:15:41,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 508 transitions. [2022-11-22 01:15:41,625 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 508 transitions. Word has length 113 [2022-11-22 01:15:41,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:41,628 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 508 transitions. [2022-11-22 01:15:41,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.808510638297872) internal successors, (226), 47 states have internal predecessors, (226), 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 01:15:41,628 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 508 transitions. [2022-11-22 01:15:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-22 01:15:41,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:41,643 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1] [2022-11-22 01:15:41,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:15:41,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 01:15:41,849 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:41,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:41,849 INFO L85 PathProgramCache]: Analyzing trace with hash 851429713, now seen corresponding path program 5 times [2022-11-22 01:15:41,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:41,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779836829] [2022-11-22 01:15:41,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:41,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:44,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:44,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:44,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779836829] [2022-11-22 01:15:44,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779836829] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:15:44,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18029496] [2022-11-22 01:15:44,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:15:44,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:15:44,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:15:44,393 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:15:44,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:15:44,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2022-11-22 01:15:44,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:15:44,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-22 01:15:44,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:15:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:44,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:15:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:15:48,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18029496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:15:48,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2139513180] [2022-11-22 01:15:48,324 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:15:48,324 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:15:48,325 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:15:48,325 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:15:48,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:15:48,368 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:15:48,681 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5644#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:15:48,681 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:15:48,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:15:48,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2022-11-22 01:15:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539668552] [2022-11-22 01:15:48,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:15:48,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-22 01:15:48,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-22 01:15:48,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4581, Invalid=5721, Unknown=0, NotChecked=0, Total=10302 [2022-11-22 01:15:48,689 INFO L87 Difference]: Start difference. First operand 462 states and 508 transitions. Second operand has 96 states, 95 states have (on average 4.905263157894737) internal successors, (466), 95 states have internal predecessors, (466), 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 01:15:51,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:51,787 INFO L93 Difference]: Finished difference Result 944 states and 1132 transitions. [2022-11-22 01:15:51,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-22 01:15:51,788 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.905263157894737) internal successors, (466), 95 states have internal predecessors, (466), 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 233 [2022-11-22 01:15:51,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:51,792 INFO L225 Difference]: With dead ends: 944 [2022-11-22 01:15:51,792 INFO L226 Difference]: Without dead ends: 942 [2022-11-22 01:15:51,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 839 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=4581, Invalid=5721, Unknown=0, NotChecked=0, Total=10302 [2022-11-22 01:15:51,797 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2078 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:51,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 570 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:15:51,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-11-22 01:15:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-11-22 01:15:51,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 940 states have (on average 1.102127659574468) internal successors, (1036), 941 states have internal predecessors, (1036), 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 01:15:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1036 transitions. [2022-11-22 01:15:51,829 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1036 transitions. Word has length 233 [2022-11-22 01:15:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:51,829 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1036 transitions. [2022-11-22 01:15:51,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.905263157894737) internal successors, (466), 95 states have internal predecessors, (466), 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 01:15:51,830 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1036 transitions. [2022-11-22 01:15:51,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2022-11-22 01:15:51,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:51,837 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1] [2022-11-22 01:15:51,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:15:52,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-22 01:15:52,044 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:15:52,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:52,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1410198097, now seen corresponding path program 6 times [2022-11-22 01:15:52,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:52,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781681811] [2022-11-22 01:15:52,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:52,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:16:00,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:00,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781681811] [2022-11-22 01:16:00,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781681811] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:16:00,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399212908] [2022-11-22 01:16:00,389 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:16:00,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:16:00,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:16:00,390 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:16:00,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:16:00,553 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:16:00,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:16:00,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-22 01:16:00,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:16:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:16:01,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:16:12,801 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:16:12,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399212908] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:16:12,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1498277688] [2022-11-22 01:16:12,804 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:16:12,804 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:16:12,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:16:12,805 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:16:12,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:16:12,850 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:16:13,314 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10938#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:16:13,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:16:13,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:16:13,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2022-11-22 01:16:13,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617461955] [2022-11-22 01:16:13,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:16:13,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-22 01:16:13,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:13,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-22 01:16:13,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18357, Invalid=20649, Unknown=0, NotChecked=0, Total=39006 [2022-11-22 01:16:13,331 INFO L87 Difference]: Start difference. First operand 942 states and 1036 transitions. Second operand has 192 states, 191 states have (on average 4.952879581151833) internal successors, (946), 191 states have internal predecessors, (946), 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 01:16:39,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:39,945 INFO L93 Difference]: Finished difference Result 1904 states and 2284 transitions. [2022-11-22 01:16:39,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-22 01:16:39,946 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.952879581151833) internal successors, (946), 191 states have internal predecessors, (946), 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 473 [2022-11-22 01:16:39,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:39,953 INFO L225 Difference]: With dead ends: 1904 [2022-11-22 01:16:39,953 INFO L226 Difference]: Without dead ends: 1902 [2022-11-22 01:16:39,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1512 GetRequests, 1316 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1703 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=18357, Invalid=20649, Unknown=0, NotChecked=0, Total=39006 [2022-11-22 01:16:39,959 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 5286 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 1156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5286 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1156 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:39,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5286 Valid, 1146 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1156 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-22 01:16:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2022-11-22 01:16:40,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1902. [2022-11-22 01:16:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1900 states have (on average 1.1010526315789473) internal successors, (2092), 1901 states have internal predecessors, (2092), 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 01:16:40,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2092 transitions. [2022-11-22 01:16:40,020 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2092 transitions. Word has length 473 [2022-11-22 01:16:40,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:40,021 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2092 transitions. [2022-11-22 01:16:40,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.952879581151833) internal successors, (946), 191 states have internal predecessors, (946), 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 01:16:40,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2092 transitions. [2022-11-22 01:16:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2022-11-22 01:16:40,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:40,055 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 1, 1] [2022-11-22 01:16:40,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:16:40,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 01:16:40,261 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:40,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:40,262 INFO L85 PathProgramCache]: Analyzing trace with hash 930098257, now seen corresponding path program 7 times [2022-11-22 01:16:40,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:40,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075200964] [2022-11-22 01:16:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:40,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:11,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:11,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075200964] [2022-11-22 01:17:11,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075200964] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:11,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269999228] [2022-11-22 01:17:11,233 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:17:11,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:11,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:11,243 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:17:11,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:17:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:11,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 102 conjunts are in the unsatisfiable core [2022-11-22 01:17:11,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:17:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 70040 proven. 0 refuted. 0 times theorem prover too weak. 20115 trivial. 0 not checked. [2022-11-22 01:17:23,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:17:23,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269999228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:23,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:17:23,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [191] total 293 [2022-11-22 01:17:23,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368130883] [2022-11-22 01:17:23,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:23,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-11-22 01:17:23,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:23,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-11-22 01:17:23,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23780, Invalid=62362, Unknown=0, NotChecked=0, Total=86142 [2022-11-22 01:17:23,946 INFO L87 Difference]: Start difference. First operand 1902 states and 2092 transitions. Second operand has 103 states, 103 states have (on average 4.932038834951456) internal successors, (508), 102 states have internal predecessors, (508), 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 01:17:25,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:25,351 INFO L93 Difference]: Finished difference Result 2350 states and 2540 transitions. [2022-11-22 01:17:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-11-22 01:17:25,352 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 4.932038834951456) internal successors, (508), 102 states have internal predecessors, (508), 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 953 [2022-11-22 01:17:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:25,357 INFO L225 Difference]: With dead ends: 2350 [2022-11-22 01:17:25,358 INFO L226 Difference]: Without dead ends: 1450 [2022-11-22 01:17:25,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1143 GetRequests, 851 SyntacticMatches, 0 SemanticMatches, 292 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19190 ImplicationChecksByTransitivity, 25.9s TimeCoverageRelationStatistics Valid=23780, Invalid=62362, Unknown=0, NotChecked=0, Total=86142 [2022-11-22 01:17:25,366 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 36 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:25,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 988 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:17:25,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-11-22 01:17:25,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1450. [2022-11-22 01:17:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 1.0690131124913733) internal successors, (1549), 1449 states have internal predecessors, (1549), 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 01:17:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1549 transitions. [2022-11-22 01:17:25,416 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1549 transitions. Word has length 953 [2022-11-22 01:17:25,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:25,417 INFO L495 AbstractCegarLoop]: Abstraction has 1450 states and 1549 transitions. [2022-11-22 01:17:25,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 4.932038834951456) internal successors, (508), 102 states have internal predecessors, (508), 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 01:17:25,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1549 transitions. [2022-11-22 01:17:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2022-11-22 01:17:25,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:25,446 INFO L195 NwaCegarLoop]: trace histogram [190, 189, 189, 189, 189, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:25,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:17:25,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:25,653 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:17:25,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:25,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1254987280, now seen corresponding path program 1 times [2022-11-22 01:17:25,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:25,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598658272] [2022-11-22 01:17:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:25,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 89209 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 89208 trivial. 0 not checked. [2022-11-22 01:17:26,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:26,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598658272] [2022-11-22 01:17:26,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598658272] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:26,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410664560] [2022-11-22 01:17:26,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:26,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:26,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:26,085 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:17:26,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 01:17:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:26,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:17:26,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:17:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 89209 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 89208 trivial. 0 not checked. [2022-11-22 01:17:26,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:17:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 89209 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 89208 trivial. 0 not checked. [2022-11-22 01:17:26,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410664560] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:17:26,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1224568670] [2022-11-22 01:17:26,466 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-22 01:17:26,467 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:17:26,467 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:17:26,467 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:17:26,467 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:17:26,563 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:17:26,780 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28948#(and (< |ULTIMATE.start_main_~j~0#1| 21) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 5 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:17:26,780 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:17:26,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:17:26,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-22 01:17:26,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548972035] [2022-11-22 01:17:26,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:17:26,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:17:26,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:26,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:17:26,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:17:26,784 INFO L87 Difference]: Start difference. First operand 1450 states and 1549 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) 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 01:17:26,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:26,834 INFO L93 Difference]: Finished difference Result 2383 states and 2482 transitions. [2022-11-22 01:17:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:17:26,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) 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 954 [2022-11-22 01:17:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:26,839 INFO L225 Difference]: With dead ends: 2383 [2022-11-22 01:17:26,840 INFO L226 Difference]: Without dead ends: 1435 [2022-11-22 01:17:26,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2863 GetRequests, 2849 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:17:26,842 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:26,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:17:26,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2022-11-22 01:17:26,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1435. [2022-11-22 01:17:26,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1434 states have (on average 1.0676429567642958) internal successors, (1531), 1434 states have internal predecessors, (1531), 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 01:17:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1531 transitions. [2022-11-22 01:17:26,892 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1531 transitions. Word has length 954 [2022-11-22 01:17:26,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:26,893 INFO L495 AbstractCegarLoop]: Abstraction has 1435 states and 1531 transitions. [2022-11-22 01:17:26,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) 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 01:17:26,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1531 transitions. [2022-11-22 01:17:26,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2022-11-22 01:17:26,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:26,902 INFO L195 NwaCegarLoop]: trace histogram [187, 186, 186, 186, 186, 4, 4, 4, 4, 4, 1, 1, 1] [2022-11-22 01:17:26,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:17:27,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 01:17:27,119 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:17:27,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:27,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1561333157, now seen corresponding path program 2 times [2022-11-22 01:17:27,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:27,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247455277] [2022-11-22 01:17:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:27,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:27,657 INFO L134 CoverageAnalysis]: Checked inductivity of 86431 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 86397 trivial. 0 not checked. [2022-11-22 01:17:27,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:27,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247455277] [2022-11-22 01:17:27,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247455277] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:27,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044178067] [2022-11-22 01:17:27,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:17:27,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:27,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:27,660 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:17:27,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-22 01:17:27,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-22 01:17:27,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:17:27,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:17:27,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:17:27,821 INFO L134 CoverageAnalysis]: Checked inductivity of 86431 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 86397 trivial. 0 not checked. [2022-11-22 01:17:27,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:17:27,918 INFO L134 CoverageAnalysis]: Checked inductivity of 86431 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 86397 trivial. 0 not checked. [2022-11-22 01:17:27,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044178067] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:17:27,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [358059503] [2022-11-22 01:17:27,922 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-22 01:17:27,922 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:17:27,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:17:27,923 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:17:27,923 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:17:27,997 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:17:28,234 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '39272#(and (< |ULTIMATE.start_main_~j~0#1| 21) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 5 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:17:28,235 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:17:28,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:17:28,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-22 01:17:28,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825934987] [2022-11-22 01:17:28,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:17:28,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:17:28,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:28,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:17:28,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:17:28,238 INFO L87 Difference]: Start difference. First operand 1435 states and 1531 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) 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 01:17:28,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:28,308 INFO L93 Difference]: Finished difference Result 2338 states and 2434 transitions. [2022-11-22 01:17:28,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:17:28,309 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) 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 954 [2022-11-22 01:17:28,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:28,313 INFO L225 Difference]: With dead ends: 2338 [2022-11-22 01:17:28,314 INFO L226 Difference]: Without dead ends: 1405 [2022-11-22 01:17:28,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2866 GetRequests, 2846 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:17:28,316 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 40 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:28,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 62 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:17:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2022-11-22 01:17:28,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1405. [2022-11-22 01:17:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 1.0648148148148149) internal successors, (1495), 1404 states have internal predecessors, (1495), 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 01:17:28,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1495 transitions. [2022-11-22 01:17:28,365 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1495 transitions. Word has length 954 [2022-11-22 01:17:28,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:28,365 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 1495 transitions. [2022-11-22 01:17:28,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) 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 01:17:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1495 transitions. [2022-11-22 01:17:28,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2022-11-22 01:17:28,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:28,374 INFO L195 NwaCegarLoop]: trace histogram [181, 180, 180, 180, 180, 10, 10, 10, 10, 10, 1, 1, 1] [2022-11-22 01:17:28,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-22 01:17:28,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-22 01:17:28,580 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:17:28,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:28,580 INFO L85 PathProgramCache]: Analyzing trace with hash -882199291, now seen corresponding path program 3 times [2022-11-22 01:17:28,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:28,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34806651] [2022-11-22 01:17:28,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:28,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 81145 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 80910 trivial. 0 not checked. [2022-11-22 01:17:29,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:29,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34806651] [2022-11-22 01:17:29,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34806651] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:29,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342078371] [2022-11-22 01:17:29,312 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:17:29,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:29,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:29,319 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:17:29,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 01:17:29,597 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:17:29,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:17:29,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:17:29,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:17:29,700 INFO L134 CoverageAnalysis]: Checked inductivity of 81145 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 80910 trivial. 0 not checked. [2022-11-22 01:17:29,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:17:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 81145 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 80910 trivial. 0 not checked. [2022-11-22 01:17:29,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342078371] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:17:29,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [752998124] [2022-11-22 01:17:29,972 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-22 01:17:29,972 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:17:29,973 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:17:29,973 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:17:29,973 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:17:30,050 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:17:30,316 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49518#(and (< |ULTIMATE.start_main_~j~0#1| 21) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 5 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:17:30,316 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:17:30,316 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:17:30,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-22 01:17:30,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141506925] [2022-11-22 01:17:30,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:17:30,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 01:17:30,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:30,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 01:17:30,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=803, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 01:17:30,322 INFO L87 Difference]: Start difference. First operand 1405 states and 1495 transitions. Second operand has 24 states, 24 states have (on average 4.583333333333333) 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 01:17:30,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:30,432 INFO L93 Difference]: Finished difference Result 2248 states and 2338 transitions. [2022-11-22 01:17:30,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 01:17:30,433 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.583333333333333) 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 954 [2022-11-22 01:17:30,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:30,437 INFO L225 Difference]: With dead ends: 2248 [2022-11-22 01:17:30,437 INFO L226 Difference]: Without dead ends: 1345 [2022-11-22 01:17:30,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2872 GetRequests, 2840 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=319, Invalid=803, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 01:17:30,441 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 88 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:30,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 68 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:17:30,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2022-11-22 01:17:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1345. [2022-11-22 01:17:30,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1344 states have (on average 1.0587797619047619) internal successors, (1423), 1344 states have internal predecessors, (1423), 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 01:17:30,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1423 transitions. [2022-11-22 01:17:30,485 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1423 transitions. Word has length 954 [2022-11-22 01:17:30,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:30,485 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 1423 transitions. [2022-11-22 01:17:30,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.583333333333333) 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 01:17:30,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1423 transitions. [2022-11-22 01:17:30,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2022-11-22 01:17:30,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:30,495 INFO L195 NwaCegarLoop]: trace histogram [169, 168, 168, 168, 168, 22, 22, 22, 22, 22, 1, 1, 1] [2022-11-22 01:17:30,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-22 01:17:30,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-22 01:17:30,702 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:17:30,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:30,702 INFO L85 PathProgramCache]: Analyzing trace with hash -885949499, now seen corresponding path program 4 times [2022-11-22 01:17:30,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:30,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304179671] [2022-11-22 01:17:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:30,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:31,986 INFO L134 CoverageAnalysis]: Checked inductivity of 71653 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 70476 trivial. 0 not checked. [2022-11-22 01:17:31,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:31,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304179671] [2022-11-22 01:17:31,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304179671] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:31,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885195495] [2022-11-22 01:17:31,987 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:17:31,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:31,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:31,989 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:17:31,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 01:17:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:32,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-22 01:17:32,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:17:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 71653 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 70476 trivial. 0 not checked. [2022-11-22 01:17:32,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:17:33,339 INFO L134 CoverageAnalysis]: Checked inductivity of 71653 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 70476 trivial. 0 not checked. [2022-11-22 01:17:33,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885195495] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:17:33,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2053330757] [2022-11-22 01:17:33,341 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-22 01:17:33,341 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:17:33,342 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:17:33,342 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:17:33,342 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:17:33,402 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:17:33,724 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '59608#(and (< |ULTIMATE.start_main_~j~0#1| 21) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 5 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-22 01:17:33,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:17:33,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:17:33,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-22 01:17:33,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355934308] [2022-11-22 01:17:33,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:17:33,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-22 01:17:33,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:33,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-22 01:17:33,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1171, Invalid=2135, Unknown=0, NotChecked=0, Total=3306 [2022-11-22 01:17:33,728 INFO L87 Difference]: Start difference. First operand 1345 states and 1423 transitions. Second operand has 48 states, 48 states have (on average 4.791666666666667) 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 01:17:33,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:33,939 INFO L93 Difference]: Finished difference Result 2068 states and 2146 transitions. [2022-11-22 01:17:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-22 01:17:33,940 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 4.791666666666667) 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 954 [2022-11-22 01:17:33,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:33,944 INFO L225 Difference]: With dead ends: 2068 [2022-11-22 01:17:33,944 INFO L226 Difference]: Without dead ends: 1225 [2022-11-22 01:17:33,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2884 GetRequests, 2828 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1171, Invalid=2135, Unknown=0, NotChecked=0, Total=3306 [2022-11-22 01:17:33,946 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 184 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:33,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 116 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:17:33,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2022-11-22 01:17:33,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1225. [2022-11-22 01:17:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1224 states have (on average 1.0449346405228759) internal successors, (1279), 1224 states have internal predecessors, (1279), 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 01:17:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1279 transitions. [2022-11-22 01:17:33,987 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1279 transitions. Word has length 954 [2022-11-22 01:17:33,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:33,988 INFO L495 AbstractCegarLoop]: Abstraction has 1225 states and 1279 transitions. [2022-11-22 01:17:33,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.791666666666667) 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 01:17:33,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1279 transitions. [2022-11-22 01:17:33,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2022-11-22 01:17:33,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:33,997 INFO L195 NwaCegarLoop]: trace histogram [145, 144, 144, 144, 144, 46, 46, 46, 46, 46, 1, 1, 1] [2022-11-22 01:17:34,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-22 01:17:34,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:34,204 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:17:34,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:34,205 INFO L85 PathProgramCache]: Analyzing trace with hash -647173819, now seen corresponding path program 5 times [2022-11-22 01:17:34,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:34,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52347412] [2022-11-22 01:17:34,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:34,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 56989 backedges. 0 proven. 5221 refuted. 0 times theorem prover too weak. 51768 trivial. 0 not checked. [2022-11-22 01:17:37,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:37,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52347412] [2022-11-22 01:17:37,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52347412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:37,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577870410] [2022-11-22 01:17:37,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:17:37,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:37,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:37,730 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:17:37,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-22 01:17:37,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2022-11-22 01:17:37,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:17:37,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:17:37,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:17:38,164 INFO L134 CoverageAnalysis]: Checked inductivity of 56989 backedges. 4365 proven. 0 refuted. 0 times theorem prover too weak. 52624 trivial. 0 not checked. [2022-11-22 01:17:38,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:17:38,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577870410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:38,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:17:38,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [48] total 56 [2022-11-22 01:17:38,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134304716] [2022-11-22 01:17:38,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:38,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:17:38,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:38,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:17:38,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1211, Invalid=1869, Unknown=0, NotChecked=0, Total=3080 [2022-11-22 01:17:38,169 INFO L87 Difference]: Start difference. First operand 1225 states and 1279 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:17:38,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:38,247 INFO L93 Difference]: Finished difference Result 2899 states and 2953 transitions. [2022-11-22 01:17:38,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:17:38,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 954 [2022-11-22 01:17:38,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:38,248 INFO L225 Difference]: With dead ends: 2899 [2022-11-22 01:17:38,248 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:17:38,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1001 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1211, Invalid=1869, Unknown=0, NotChecked=0, Total=3080 [2022-11-22 01:17:38,251 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:38,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:17:38,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:17:38,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:17:38,253 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 01:17:38,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:17:38,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 954 [2022-11-22 01:17:38,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:38,254 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:17:38,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:17:38,254 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:17:38,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:17:38,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-22 01:17:38,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-22 01:17:38,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-22 01:17:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-22 01:17:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-22 01:17:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-22 01:17:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-22 01:17:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-22 01:17:38,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-22 01:17:38,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:38,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:17:46,228 WARN L233 SmtUtils]: Spent 7.43s on a formula simplification. DAG size of input: 629 DAG size of output: 534 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-22 01:17:53,914 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 534 DAG size of output: 45 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-22 01:17:53,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-22 01:17:53,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:17:53,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-11-22 01:17:53,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-22 01:17:53,918 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-22 01:17:53,918 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-11-22 01:17:53,919 INFO L895 garLoopResultBuilder]: At program point L15-2(lines 15 18) the Hoare annotation is: (let ((.cse0 (<= 5 |ULTIMATE.start_main_~j~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~c~0#1|)) (.cse2 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse3 (<= 100 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= 23 |ULTIMATE.start_main_~j~0#1|) .cse0 .cse1 .cse2 .cse3 (< |ULTIMATE.start_main_~c~0#1| 2147483564)) (and (< |ULTIMATE.start_main_~c~0#1| 2147483558) .cse0 .cse1 .cse2 .cse3) (and (< |ULTIMATE.start_main_~c~0#1| 2147483560) .cse0 .cse1 .cse2 .cse3 (<= 11 |ULTIMATE.start_main_~j~0#1|)) (and (<= 17 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~c~0#1| 2147483562) .cse0 .cse1 .cse2 .cse3) (and (<= 14 |ULTIMATE.start_main_~j~0#1|) .cse0 (< |ULTIMATE.start_main_~c~0#1| 2147483561) .cse1 .cse2 .cse3) (and (<= 20 |ULTIMATE.start_main_~j~0#1|) .cse0 .cse1 .cse2 .cse3 (< |ULTIMATE.start_main_~c~0#1| 2147483563)) (and (<= 8 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~c~0#1| 2147483559) .cse0 .cse1 .cse2 .cse3))) [2022-11-22 01:17:53,919 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-11-22 01:17:53,919 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-11-22 01:17:53,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-22 01:17:53,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-22 01:17:53,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-11-22 01:17:53,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:17:53,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-22 01:17:53,920 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-22 01:17:53,920 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-22 01:17:53,921 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-11-22 01:17:53,921 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-11-22 01:17:53,921 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-22 01:17:53,923 INFO L895 garLoopResultBuilder]: At program point L10-2(lines 10 13) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~c~0#1|))) (or (and (<= 12 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 12)) (and (<= |ULTIMATE.start_main_~c~0#1| 76) (<= 76 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 89) (<= 89 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 57 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 57)) (and (<= |ULTIMATE.start_main_~c~0#1| 56) .cse0 (<= 56 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 25) .cse0 (<= 25 |ULTIMATE.start_main_~i~0#1|)) (and (<= 88 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 88)) (and .cse0 (<= 41 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 41)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 73) (<= 73 |ULTIMATE.start_main_~i~0#1|)) (and (<= 91 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 91)) (and (< |ULTIMATE.start_main_~c~0#1| 2147483557) .cse0 (<= 99 |ULTIMATE.start_main_~i~0#1|)) (and (<= 83 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 83)) (and .cse0 (<= 34 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 34)) (and (<= |ULTIMATE.start_main_~c~0#1| 43) (<= 43 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 61) .cse0 (<= 61 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 20) (<= 20 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 38) .cse0 (<= 38 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 42) (<= 42 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 90 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 90)) (and (<= 47 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 47) .cse0) (and (<= 72 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 72) .cse0) (and (<= 49 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 49)) (and (<= 35 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 35) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 45) .cse0 (<= 45 |ULTIMATE.start_main_~i~0#1|)) (and (<= 98 |ULTIMATE.start_main_~i~0#1|) .cse0 (< |ULTIMATE.start_main_~c~0#1| 2147483556)) (and (<= |ULTIMATE.start_main_~c~0#1| 87) (<= 87 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= 26 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 26)) (and (<= 44 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 44)) (and .cse0 (<= 94 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 94)) (and (<= 79 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 79) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 50) .cse0 (<= 50 |ULTIMATE.start_main_~i~0#1|)) (and (<= 52 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 52) .cse0) (and (<= 58 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 58)) (and (<= |ULTIMATE.start_main_~c~0#1| 66) (<= 66 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 24) .cse0 (<= 24 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 6) (<= 6 |ULTIMATE.start_main_~i~0#1|)) (and (<= 97 |ULTIMATE.start_main_~i~0#1|) .cse0 (< |ULTIMATE.start_main_~c~0#1| 2147483555)) (and (<= 84 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 84)) (and (<= 36 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 36) .cse0) (and .cse0 (<= 78 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 78)) (and (<= |ULTIMATE.start_main_~c~0#1| 4) .cse0 (<= 4 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 92) (<= 92 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 28 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 28) .cse0) (and (<= 17 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 17)) (and (<= 7 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 7)) (and (<= |ULTIMATE.start_main_~c~0#1| 62) .cse0 (<= 62 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 16) (<= 16 |ULTIMATE.start_main_~i~0#1|)) (and (<= 23 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 23)) (and (<= |ULTIMATE.start_main_~c~0#1| 63) .cse0 (<= 63 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 51) (<= 51 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 64 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 64) .cse0) (and .cse0 (< |ULTIMATE.start_main_~c~0#1| 2147483554) (<= 96 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 21) (<= 21 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 93 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 93)) (and (<= |ULTIMATE.start_main_~c~0#1| 65) .cse0 (<= 65 |ULTIMATE.start_main_~i~0#1|)) (and (<= 59 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 59)) (and (<= |ULTIMATE.start_main_~c~0#1| 53) (<= 53 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 13 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 13)) (and .cse0 (<= 9 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 9)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 11) (<= 11 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 15) (<= 15 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 69) .cse0 (<= 69 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 74 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 74)) (and (<= |ULTIMATE.start_main_~c~0#1| 68) .cse0 (<= 68 |ULTIMATE.start_main_~i~0#1|)) (and (< |ULTIMATE.start_main_~c~0#1| 2147483558) .cse0 (<= 100 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 67 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 67)) (and (<= |ULTIMATE.start_main_~c~0#1| 54) .cse0 (<= 54 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 81) (<= 81 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 22) .cse0 (<= 22 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2) (<= 2 |ULTIMATE.start_main_~i~0#1|)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 1) .cse0) (and .cse0 (<= 85 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 85)) (and (<= 10 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 10) .cse0) (and (<= 29 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 29)) (and (<= |ULTIMATE.start_main_~c~0#1| 33) .cse0 (<= 33 |ULTIMATE.start_main_~i~0#1|)) (and (<= 82 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 82)) (and (<= 48 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 48) .cse0) (and (<= 55 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 55) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 71) (<= 71 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 32) (<= 32 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 60) (<= 60 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 31) (<= 31 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 70) .cse0 (<= 70 |ULTIMATE.start_main_~i~0#1|)) (and (<= 86 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 86) .cse0) (and (<= 40 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 40)) (and (<= |ULTIMATE.start_main_~c~0#1| 14) (<= 14 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= 95 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~c~0#1| 2147483553)) (and (<= |ULTIMATE.start_main_~c~0#1| 80) .cse0 (<= 80 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 5) (<= 5 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 3)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 77) (<= 77 |ULTIMATE.start_main_~i~0#1|)) (and (<= 30 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 30)) (and (<= 37 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 37) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 39) .cse0 (<= 39 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 8) (<= 8 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 27) (<= 27 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 75) (<= 75 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 19) (<= 19 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 18 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 18)) (and .cse0 (<= 46 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 46)))) [2022-11-22 01:17:53,928 INFO L444 BasicCegarLoop]: Path program histogram: [7, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:53,930 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:17:53,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:17:53 BoogieIcfgContainer [2022-11-22 01:17:53,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:17:53,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:17:53,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:17:53,962 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:17:53,962 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:15:33" (3/4) ... [2022-11-22 01:17:53,965 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:17:53,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 01:17:53,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-22 01:17:53,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 01:17:54,004 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:17:54,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:17:54,005 INFO L158 Benchmark]: Toolchain (without parser) took 141619.93ms. Allocated memory was 180.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 150.4MB in the beginning and 891.6MB in the end (delta: -741.1MB). Peak memory consumption was 757.1MB. Max. memory is 16.1GB. [2022-11-22 01:17:54,005 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:17:54,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.60ms. Allocated memory is still 180.4MB. Free memory was 150.4MB in the beginning and 141.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 01:17:54,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.78ms. Allocated memory is still 180.4MB. Free memory was 141.2MB in the beginning and 139.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:17:54,006 INFO L158 Benchmark]: Boogie Preprocessor took 27.86ms. Allocated memory is still 180.4MB. Free memory was 139.6MB in the beginning and 138.8MB in the end (delta: 837.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:17:54,006 INFO L158 Benchmark]: RCFGBuilder took 343.56ms. Allocated memory is still 180.4MB. Free memory was 138.8MB in the beginning and 128.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:17:54,006 INFO L158 Benchmark]: TraceAbstraction took 140930.63ms. Allocated memory was 180.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 128.2MB in the beginning and 894.7MB in the end (delta: -766.5MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2022-11-22 01:17:54,007 INFO L158 Benchmark]: Witness Printer took 42.91ms. Allocated memory is still 1.7GB. Free memory was 894.7MB in the beginning and 891.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:17:54,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.60ms. Allocated memory is still 180.4MB. Free memory was 150.4MB in the beginning and 141.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.78ms. Allocated memory is still 180.4MB. Free memory was 141.2MB in the beginning and 139.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.86ms. Allocated memory is still 180.4MB. Free memory was 139.6MB in the beginning and 138.8MB in the end (delta: 837.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 343.56ms. Allocated memory is still 180.4MB. Free memory was 138.8MB in the beginning and 128.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 140930.63ms. Allocated memory was 180.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 128.2MB in the beginning and 894.7MB in the end (delta: -766.5MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 42.91ms. Allocated memory is still 1.7GB. Free memory was 894.7MB in the beginning and 891.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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, 20 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 140.8s, OverallIterations: 20, TraceHistogramMax: 191, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 33.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9070 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9070 mSDsluCounter, 3704 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3313 mSDsCounter, 2030 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3878 IncrementalHoareTripleChecker+Invalid, 5908 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2030 mSolverCounterUnsat, 391 mSDtfsCounter, 3878 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16560 GetRequests, 15676 SyntacticMatches, 0 SemanticMatches, 884 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24005 ImplicationChecksByTransitivity, 50.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1902occurred in iteration=14, InterpolantAutomatonStates: 604, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 22 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 488 NumberOfFragments, 1142 HoareAnnotationTreeSize, 2 FomulaSimplifications, 2718 FormulaSimplificationTreeSizeReduction, 7.8s HoareSimplificationTime, 2 FomulaSimplificationsInter, 13098 FormulaSimplificationTreeSizeReductionInter, 7.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 81.3s InterpolantComputationTime, 13358 NumberOfCodeBlocks, 11808 NumberOfCodeBlocksAsserted, 123 NumberOfCheckSat, 18032 ConstructedInterpolants, 0 QuantifiedInterpolants, 28072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 9256 ConjunctsInSsa, 350 ConjunctsInUnsatCore, 45 InterpolantComputations, 10 PerfectInterpolantSequences, 1179900/1366002 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((12 <= i && 0 <= c) && c <= 12) || ((c <= 76 && 76 <= i) && 0 <= c)) || ((c <= 89 && 89 <= i) && 0 <= c)) || ((57 <= i && 0 <= c) && c <= 57)) || ((c <= 56 && 0 <= c) && 56 <= i)) || ((c <= 25 && 0 <= c) && 25 <= i)) || ((88 <= i && 0 <= c) && c <= 88)) || ((0 <= c && 41 <= i) && c <= 41)) || ((0 <= c && c <= 73) && 73 <= i)) || ((91 <= i && 0 <= c) && c <= 91)) || ((c < 2147483557 && 0 <= c) && 99 <= i)) || ((83 <= i && 0 <= c) && c <= 83)) || ((0 <= c && 34 <= i) && c <= 34)) || ((c <= 43 && 43 <= i) && 0 <= c)) || ((0 <= c && c <= 0) && 0 <= i)) || ((c <= 61 && 0 <= c) && 61 <= i)) || ((0 <= c && c <= 20) && 20 <= i)) || ((c <= 38 && 0 <= c) && 38 <= i)) || ((c <= 42 && 42 <= i) && 0 <= c)) || ((90 <= i && 0 <= c) && c <= 90)) || ((47 <= i && c <= 47) && 0 <= c)) || ((72 <= i && c <= 72) && 0 <= c)) || ((49 <= i && 0 <= c) && c <= 49)) || ((35 <= i && c <= 35) && 0 <= c)) || ((c <= 45 && 0 <= c) && 45 <= i)) || ((98 <= i && 0 <= c) && c < 2147483556)) || ((c <= 87 && 87 <= i) && 0 <= c)) || ((0 <= c && 26 <= i) && c <= 26)) || ((44 <= i && 0 <= c) && c <= 44)) || ((0 <= c && 94 <= i) && c <= 94)) || ((79 <= i && c <= 79) && 0 <= c)) || ((c <= 50 && 0 <= c) && 50 <= i)) || ((52 <= i && c <= 52) && 0 <= c)) || ((58 <= i && 0 <= c) && c <= 58)) || ((c <= 66 && 66 <= i) && 0 <= c)) || ((c <= 24 && 0 <= c) && 24 <= i)) || ((0 <= c && c <= 6) && 6 <= i)) || ((97 <= i && 0 <= c) && c < 2147483555)) || ((84 <= i && 0 <= c) && c <= 84)) || ((36 <= i && c <= 36) && 0 <= c)) || ((0 <= c && 78 <= i) && c <= 78)) || ((c <= 4 && 0 <= c) && 4 <= i)) || ((c <= 92 && 92 <= i) && 0 <= c)) || ((28 <= i && c <= 28) && 0 <= c)) || ((17 <= i && 0 <= c) && c <= 17)) || ((7 <= i && 0 <= c) && c <= 7)) || ((c <= 62 && 0 <= c) && 62 <= i)) || ((0 <= c && c <= 16) && 16 <= i)) || ((23 <= i && 0 <= c) && c <= 23)) || ((c <= 63 && 0 <= c) && 63 <= i)) || ((c <= 51 && 51 <= i) && 0 <= c)) || ((64 <= i && c <= 64) && 0 <= c)) || ((0 <= c && c < 2147483554) && 96 <= i)) || ((c <= 21 && 21 <= i) && 0 <= c)) || ((93 <= i && 0 <= c) && c <= 93)) || ((c <= 65 && 0 <= c) && 65 <= i)) || ((59 <= i && 0 <= c) && c <= 59)) || ((c <= 53 && 53 <= i) && 0 <= c)) || ((13 <= i && 0 <= c) && c <= 13)) || ((0 <= c && 9 <= i) && c <= 9)) || ((0 <= c && c <= 11) && 11 <= i)) || ((c <= 15 && 15 <= i) && 0 <= c)) || ((c <= 69 && 0 <= c) && 69 <= i)) || ((0 <= c && 74 <= i) && c <= 74)) || ((c <= 68 && 0 <= c) && 68 <= i)) || ((c < 2147483558 && 0 <= c) && 100 <= i)) || ((0 <= c && 67 <= i) && c <= 67)) || ((c <= 54 && 0 <= c) && 54 <= i)) || ((0 <= c && c <= 81) && 81 <= i)) || ((c <= 22 && 0 <= c) && 22 <= i)) || ((0 <= c && c <= 2) && 2 <= i)) || ((1 <= i && c <= 1) && 0 <= c)) || ((0 <= c && 85 <= i) && c <= 85)) || ((10 <= i && c <= 10) && 0 <= c)) || ((29 <= i && 0 <= c) && c <= 29)) || ((c <= 33 && 0 <= c) && 33 <= i)) || ((82 <= i && 0 <= c) && c <= 82)) || ((48 <= i && c <= 48) && 0 <= c)) || ((55 <= i && c <= 55) && 0 <= c)) || ((0 <= c && c <= 71) && 71 <= i)) || ((0 <= c && c <= 32) && 32 <= i)) || ((c <= 60 && 60 <= i) && 0 <= c)) || ((0 <= c && c <= 31) && 31 <= i)) || ((c <= 70 && 0 <= c) && 70 <= i)) || ((86 <= i && c <= 86) && 0 <= c)) || ((40 <= i && 0 <= c) && c <= 40)) || ((c <= 14 && 14 <= i) && 0 <= c)) || ((0 <= c && 95 <= i) && c < 2147483553)) || ((c <= 80 && 0 <= c) && 80 <= i)) || ((c <= 5 && 5 <= i) && 0 <= c)) || ((0 <= c && 3 <= i) && c <= 3)) || ((0 <= c && c <= 77) && 77 <= i)) || ((30 <= i && 0 <= c) && c <= 30)) || ((37 <= i && c <= 37) && 0 <= c)) || ((c <= 39 && 0 <= c) && 39 <= i)) || ((0 <= c && c <= 8) && 8 <= i)) || ((c <= 27 && 27 <= i) && 0 <= c)) || ((0 <= c && c <= 75) && 75 <= i)) || ((c <= 19 && 19 <= i) && 0 <= c)) || ((18 <= i && 0 <= c) && c <= 18)) || ((0 <= c && 46 <= i) && c <= 46) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((((((((23 <= j && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i) && c < 2147483564) || ((((c < 2147483558 && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i)) || (((((c < 2147483560 && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i) && 11 <= j)) || (((((17 <= j && c < 2147483562) && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i)) || (((((14 <= j && 5 <= j) && c < 2147483561) && 0 <= c) && 0 <= i) && 100 <= i)) || (((((20 <= j && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i) && c < 2147483563)) || (((((8 <= j && c < 2147483559) && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i) RESULT: Ultimate proved your program to be correct! [2022-11-22 01:17:54,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62858b22-3a84-4fc1-ac58-e861bfc42935/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