./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 32bit --witnessprinter.graph.data.programhash a97cc7ecf3f325d6a4f94ad142da468f60264f8646a5f445527873ff4eb9457a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:21:33,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:21:33,560 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 16:21:33,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:21:33,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:21:33,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:21:33,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:21:33,600 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:21:33,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:21:33,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:21:33,602 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:21:33,602 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:21:33,603 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:21:33,603 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:21:33,604 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:21:33,604 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:21:33,605 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:21:33,606 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:21:33,606 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:21:33,607 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:21:33,607 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:21:33,608 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:21:33,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:21:33,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:21:33,610 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:21:33,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:21:33,611 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:21:33,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:21:33,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:21:33,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:21:33,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:21:33,613 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:21:33,613 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:21:33,614 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:21:33,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:21:33,614 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:21:33,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:21:33,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:21:33,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:21:33,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:21:33,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:21:33,616 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:21:33,616 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:21:33,616 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:21:33,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:21:33,616 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:21:33,617 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:21:33,617 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:21:33,617 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:21:33,617 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a97cc7ecf3f325d6a4f94ad142da468f60264f8646a5f445527873ff4eb9457a [2023-12-02 16:21:33,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:21:33,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:21:33,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:21:33,907 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:21:33,907 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:21:33,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2023-12-02 16:21:37,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:21:37,312 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:21:37,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2023-12-02 16:21:37,321 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/data/e60feac71/b8dda177fd364e62b9df454de01970e3/FLAGe24eb4e72 [2023-12-02 16:21:37,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/data/e60feac71/b8dda177fd364e62b9df454de01970e3 [2023-12-02 16:21:37,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:21:37,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:21:37,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:21:37,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:21:37,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:21:37,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622c1690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37, skipping insertion in model container [2023-12-02 16:21:37,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,374 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:21:37,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:21:37,539 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:21:37,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:21:37,569 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:21:37,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37 WrapperNode [2023-12-02 16:21:37,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:21:37,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:21:37,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:21:37,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:21:37,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,604 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2023-12-02 16:21:37,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:21:37,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:21:37,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:21:37,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:21:37,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,620 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:21:37,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:21:37,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:21:37,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:21:37,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (1/1) ... [2023-12-02 16:21:37,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:21:37,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:37,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:21:37,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:21:37,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:21:37,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:21:37,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:21:37,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:21:37,778 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:21:37,781 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:21:37,916 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:21:37,964 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:21:37,964 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:21:37,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:21:37 BoogieIcfgContainer [2023-12-02 16:21:37,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:21:37,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:21:37,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:21:37,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:21:37,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:21:37" (1/3) ... [2023-12-02 16:21:37,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685904e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:21:37, skipping insertion in model container [2023-12-02 16:21:37,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:37" (2/3) ... [2023-12-02 16:21:37,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685904e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:21:37, skipping insertion in model container [2023-12-02 16:21:37,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:21:37" (3/3) ... [2023-12-02 16:21:37,976 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark20_conjunctive.i [2023-12-02 16:21:37,994 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:21:37,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 16:21:38,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:21:38,052 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=LoopHeads, 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;@46c03923, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:21:38,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 16:21:38,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 16:21:38,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:38,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 16:21:38,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:38,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:38,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2301147, now seen corresponding path program 1 times [2023-12-02 16:21:38,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:38,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944144608] [2023-12-02 16:21:38,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:38,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:38,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:38,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944144608] [2023-12-02 16:21:38,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944144608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:38,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:38,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:21:38,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275787601] [2023-12-02 16:21:38,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:38,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:21:38,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:38,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:21:38,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:21:38,356 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:38,411 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2023-12-02 16:21:38,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:21:38,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-02 16:21:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:38,422 INFO L225 Difference]: With dead ends: 18 [2023-12-02 16:21:38,422 INFO L226 Difference]: Without dead ends: 14 [2023-12-02 16:21:38,424 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 [2023-12-02 16:21:38,428 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:38,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:21:38,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-12-02 16:21:38,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-12-02 16:21:38,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-12-02 16:21:38,461 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2023-12-02 16:21:38,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:38,461 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-12-02 16:21:38,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-12-02 16:21:38,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 16:21:38,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:38,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 16:21:38,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:21:38,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:38,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:38,464 INFO L85 PathProgramCache]: Analyzing trace with hash 71335607, now seen corresponding path program 1 times [2023-12-02 16:21:38,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:38,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502984427] [2023-12-02 16:21:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:38,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:38,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:38,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502984427] [2023-12-02 16:21:38,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502984427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:38,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:38,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:21:38,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186723684] [2023-12-02 16:21:38,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:38,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:21:38,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:38,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:21:38,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:21:38,533 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:38,559 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-12-02 16:21:38,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:21:38,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 16:21:38,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:38,561 INFO L225 Difference]: With dead ends: 15 [2023-12-02 16:21:38,561 INFO L226 Difference]: Without dead ends: 14 [2023-12-02 16:21:38,562 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 [2023-12-02 16:21:38,564 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:38,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:21:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-12-02 16:21:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-12-02 16:21:38,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-02 16:21:38,570 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2023-12-02 16:21:38,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:38,570 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-12-02 16:21:38,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,571 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-02 16:21:38,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 16:21:38,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:38,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 16:21:38,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:21:38,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:38,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:38,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2083563427, now seen corresponding path program 1 times [2023-12-02 16:21:38,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:38,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423933812] [2023-12-02 16:21:38,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:38,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:38,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:38,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423933812] [2023-12-02 16:21:38,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423933812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:38,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:38,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:21:38,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7476694] [2023-12-02 16:21:38,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:38,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:21:38,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:38,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:21:38,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:21:38,645 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-12-02 16:21:38,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:38,688 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-02 16:21:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:21:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2023-12-02 16:21:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:38,690 INFO L225 Difference]: With dead ends: 14 [2023-12-02 16:21:38,690 INFO L226 Difference]: Without dead ends: 13 [2023-12-02 16:21:38,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:21:38,692 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:38,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:21:38,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-02 16:21:38,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-12-02 16:21:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-12-02 16:21:38,698 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2023-12-02 16:21:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:38,699 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-12-02 16:21:38,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-12-02 16:21:38,699 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-12-02 16:21:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 16:21:38,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:38,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:21:38,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:21:38,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:38,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:38,701 INFO L85 PathProgramCache]: Analyzing trace with hash -165956743, now seen corresponding path program 1 times [2023-12-02 16:21:38,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:38,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425473314] [2023-12-02 16:21:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:38,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:38,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:38,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:38,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425473314] [2023-12-02 16:21:38,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425473314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:38,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:38,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:21:38,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563429582] [2023-12-02 16:21:38,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:38,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:21:38,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:38,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:21:38,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:21:38,762 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:38,800 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-12-02 16:21:38,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:21:38,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 16:21:38,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:38,802 INFO L225 Difference]: With dead ends: 16 [2023-12-02 16:21:38,802 INFO L226 Difference]: Without dead ends: 15 [2023-12-02 16:21:38,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:21:38,804 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:38,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:21:38,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-02 16:21:38,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-02 16:21:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-12-02 16:21:38,810 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2023-12-02 16:21:38,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:38,811 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-12-02 16:21:38,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:38,811 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-12-02 16:21:38,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 16:21:38,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:38,812 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:21:38,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 16:21:38,813 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:38,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:38,813 INFO L85 PathProgramCache]: Analyzing trace with hash -570638597, now seen corresponding path program 1 times [2023-12-02 16:21:38,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:38,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389417604] [2023-12-02 16:21:38,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:38,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:38,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:38,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389417604] [2023-12-02 16:21:38,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389417604] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:21:38,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160607049] [2023-12-02 16:21:38,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:38,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:38,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:38,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:21:38,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:21:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:38,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:21:38,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:39,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:39,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:21:39,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160607049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:39,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:21:39,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-12-02 16:21:39,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396452770] [2023-12-02 16:21:39,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:39,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:21:39,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:39,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:21:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:21:39,094 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:39,143 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-12-02 16:21:39,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:21:39,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-02 16:21:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:39,144 INFO L225 Difference]: With dead ends: 15 [2023-12-02 16:21:39,144 INFO L226 Difference]: Without dead ends: 14 [2023-12-02 16:21:39,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:21:39,146 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:39,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:21:39,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-12-02 16:21:39,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-12-02 16:21:39,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-02 16:21:39,151 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2023-12-02 16:21:39,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:39,151 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-12-02 16:21:39,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:21:39,152 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-02 16:21:39,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 16:21:39,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:39,152 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-12-02 16:21:39,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:21:39,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:39,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:39,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash -509927273, now seen corresponding path program 1 times [2023-12-02 16:21:39,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:39,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555937045] [2023-12-02 16:21:39,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:39,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:39,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:39,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:39,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555937045] [2023-12-02 16:21:39,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555937045] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:21:39,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424431251] [2023-12-02 16:21:39,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:39,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:39,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:39,445 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:21:39,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:21:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:39,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:21:39,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:39,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:21:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:39,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424431251] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:21:39,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [645883861] [2023-12-02 16:21:39,653 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 16:21:39,653 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:21:39,657 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:21:39,663 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:21:39,663 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:21:40,218 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:21:40,457 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '302#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~sum~0#1|)) (<= |ULTIMATE.start_main_~n~0#1| 100) (<= |ULTIMATE.start_main_~i~0#1| 99) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:21:40,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:21:40,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:21:40,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-12-02 16:21:40,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873697426] [2023-12-02 16:21:40,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:21:40,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 16:21:40,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:40,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 16:21:40,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-02 16:21:40,460 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 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) [2023-12-02 16:21:40,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:40,579 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2023-12-02 16:21:40,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:21:40,581 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 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 [2023-12-02 16:21:40,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:40,582 INFO L225 Difference]: With dead ends: 24 [2023-12-02 16:21:40,582 INFO L226 Difference]: Without dead ends: 23 [2023-12-02 16:21:40,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:21:40,583 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:40,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:21:40,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-12-02 16:21:40,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2023-12-02 16:21:40,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 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) [2023-12-02 16:21:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-12-02 16:21:40,590 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2023-12-02 16:21:40,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:40,590 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-12-02 16:21:40,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 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) [2023-12-02 16:21:40,591 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-12-02 16:21:40,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 16:21:40,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:40,591 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2023-12-02 16:21:40,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 16:21:40,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 16:21:40,792 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:40,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:40,793 INFO L85 PathProgramCache]: Analyzing trace with hash -413835943, now seen corresponding path program 1 times [2023-12-02 16:21:40,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:40,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036686344] [2023-12-02 16:21:40,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:40,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:40,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:40,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036686344] [2023-12-02 16:21:40,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036686344] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:21:40,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863201084] [2023-12-02 16:21:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:40,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:40,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:40,867 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:21:40,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:21:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:40,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:21:40,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:40,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:21:40,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:40,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863201084] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:21:40,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1483823551] [2023-12-02 16:21:40,995 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 16:21:40,995 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:21:40,995 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:21:40,996 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:21:40,996 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:21:41,209 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:21:41,410 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '441#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~n~0#1| 100) (<= 0 |ULTIMATE.start_main_~sum~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= 2147483647 |ULTIMATE.start_main_#t~post4#1|))' at error location [2023-12-02 16:21:41,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:21:41,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:21:41,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-12-02 16:21:41,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506381614] [2023-12-02 16:21:41,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:21:41,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:21:41,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:41,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:21:41,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:21:41,412 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 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) [2023-12-02 16:21:41,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:41,518 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-12-02 16:21:41,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 16:21:41,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 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) Word has length 12 [2023-12-02 16:21:41,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:41,519 INFO L225 Difference]: With dead ends: 31 [2023-12-02 16:21:41,519 INFO L226 Difference]: Without dead ends: 30 [2023-12-02 16:21:41,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-12-02 16:21:41,521 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:41,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:21:41,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-02 16:21:41,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2023-12-02 16:21:41,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 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) [2023-12-02 16:21:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2023-12-02 16:21:41,527 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 12 [2023-12-02 16:21:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:41,527 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2023-12-02 16:21:41,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 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) [2023-12-02 16:21:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2023-12-02 16:21:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 16:21:41,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:41,528 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1] [2023-12-02 16:21:41,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:21:41,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:41,729 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:41,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:41,730 INFO L85 PathProgramCache]: Analyzing trace with hash 408712343, now seen corresponding path program 2 times [2023-12-02 16:21:41,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:41,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999225132] [2023-12-02 16:21:41,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:41,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:41,884 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:41,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:41,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999225132] [2023-12-02 16:21:41,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999225132] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:21:41,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198093361] [2023-12-02 16:21:41,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:21:41,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:41,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:41,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:21:41,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:21:41,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-02 16:21:41,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:21:41,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 16:21:41,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:42,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:21:42,433 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:42,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198093361] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:21:42,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [439237708] [2023-12-02 16:21:42,436 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 16:21:42,437 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:21:42,437 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:21:42,437 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:21:42,437 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:21:42,674 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:21:43,072 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '661#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~sum~0#1|)) (<= |ULTIMATE.start_main_~n~0#1| 100) (<= |ULTIMATE.start_main_~i~0#1| 99) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:21:43,072 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:21:43,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:21:43,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-12-02 16:21:43,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96615262] [2023-12-02 16:21:43,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:21:43,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-02 16:21:43,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:43,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-02 16:21:43,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2023-12-02 16:21:43,075 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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) [2023-12-02 16:21:43,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:43,794 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2023-12-02 16:21:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 16:21:43,794 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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 20 [2023-12-02 16:21:43,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:43,796 INFO L225 Difference]: With dead ends: 45 [2023-12-02 16:21:43,796 INFO L226 Difference]: Without dead ends: 44 [2023-12-02 16:21:43,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=306, Invalid=1416, Unknown=0, NotChecked=0, Total=1722 [2023-12-02 16:21:43,798 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:43,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 2 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:21:43,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-02 16:21:43,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2023-12-02 16:21:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.1) internal successors, (44), 41 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) [2023-12-02 16:21:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2023-12-02 16:21:43,806 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 20 [2023-12-02 16:21:43,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:43,807 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2023-12-02 16:21:43,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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) [2023-12-02 16:21:43,807 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2023-12-02 16:21:43,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 16:21:43,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:43,808 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1] [2023-12-02 16:21:43,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 16:21:44,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 16:21:44,009 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:44,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1943210873, now seen corresponding path program 2 times [2023-12-02 16:21:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:44,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340976665] [2023-12-02 16:21:44,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:44,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:44,155 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:44,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:44,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340976665] [2023-12-02 16:21:44,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340976665] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:21:44,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048209556] [2023-12-02 16:21:44,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:21:44,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:44,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:44,157 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:21:44,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:21:44,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 16:21:44,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:21:44,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:21:44,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:21:44,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:21:44,318 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:21:44,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048209556] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:21:44,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [800853197] [2023-12-02 16:21:44,321 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 16:21:44,321 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:21:44,321 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:21:44,321 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:21:44,322 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:21:44,507 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:21:44,781 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '971#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~n~0#1| 100) (<= 0 |ULTIMATE.start_main_~sum~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= 2147483647 |ULTIMATE.start_main_#t~post4#1|))' at error location [2023-12-02 16:21:44,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:21:44,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:21:44,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2023-12-02 16:21:44,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768072183] [2023-12-02 16:21:44,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:21:44,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 16:21:44,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:44,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 16:21:44,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2023-12-02 16:21:44,784 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 18 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 18 states have internal predecessors, (49), 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) [2023-12-02 16:21:45,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:45,001 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2023-12-02 16:21:45,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 16:21:45,002 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 18 states have internal predecessors, (49), 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 27 [2023-12-02 16:21:45,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:45,003 INFO L225 Difference]: With dead ends: 42 [2023-12-02 16:21:45,003 INFO L226 Difference]: Without dead ends: 41 [2023-12-02 16:21:45,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 16:21:45,004 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:45,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:21:45,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-02 16:21:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-12-02 16:21:45,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 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) [2023-12-02 16:21:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2023-12-02 16:21:45,010 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 27 [2023-12-02 16:21:45,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:45,010 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2023-12-02 16:21:45,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 18 states have internal predecessors, (49), 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) [2023-12-02 16:21:45,010 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2023-12-02 16:21:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 16:21:45,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:45,011 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1] [2023-12-02 16:21:45,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 16:21:45,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 16:21:45,212 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:45,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash 424942743, now seen corresponding path program 3 times [2023-12-02 16:21:45,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:45,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946504606] [2023-12-02 16:21:45,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:45,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:45,649 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:45,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:45,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946504606] [2023-12-02 16:21:45,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946504606] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:21:45,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881297870] [2023-12-02 16:21:45,650 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 16:21:45,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:45,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:45,652 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:21:45,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 16:21:45,711 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 16:21:45,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:21:45,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 16:21:45,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:46,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:21:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:46,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881297870] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:21:46,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1460039323] [2023-12-02 16:21:46,693 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 16:21:46,693 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:21:46,693 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:21:46,694 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:21:46,694 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:21:46,892 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:21:47,470 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1382#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~sum~0#1|)) (<= |ULTIMATE.start_main_~n~0#1| 100) (<= |ULTIMATE.start_main_~i~0#1| 99) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:21:47,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:21:47,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:21:47,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2023-12-02 16:21:47,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542749343] [2023-12-02 16:21:47,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:21:47,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-12-02 16:21:47,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:47,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-12-02 16:21:47,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=2377, Unknown=0, NotChecked=0, Total=2652 [2023-12-02 16:21:47,476 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 47 states, 46 states have (on average 2.5652173913043477) internal successors, (118), 47 states have internal predecessors, (118), 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) [2023-12-02 16:21:49,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:49,013 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2023-12-02 16:21:49,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-02 16:21:49,013 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.5652173913043477) internal successors, (118), 47 states have internal predecessors, (118), 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 40 [2023-12-02 16:21:49,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:49,014 INFO L225 Difference]: With dead ends: 82 [2023-12-02 16:21:49,014 INFO L226 Difference]: Without dead ends: 81 [2023-12-02 16:21:49,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 77 SyntacticMatches, 7 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1405 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=969, Invalid=5351, Unknown=0, NotChecked=0, Total=6320 [2023-12-02 16:21:49,019 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 61 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:49,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 16:21:49,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-02 16:21:49,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-12-02 16:21:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 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) [2023-12-02 16:21:49,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2023-12-02 16:21:49,027 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 40 [2023-12-02 16:21:49,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:49,028 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2023-12-02 16:21:49,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.5652173913043477) internal successors, (118), 47 states have internal predecessors, (118), 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) [2023-12-02 16:21:49,028 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2023-12-02 16:21:49,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 16:21:49,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:49,031 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 1, 1, 1] [2023-12-02 16:21:49,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 16:21:49,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 16:21:49,231 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:21:49,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:49,232 INFO L85 PathProgramCache]: Analyzing trace with hash -199791465, now seen corresponding path program 4 times [2023-12-02 16:21:49,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:49,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662642119] [2023-12-02 16:21:49,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:49,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:50,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:50,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662642119] [2023-12-02 16:21:50,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662642119] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:21:50,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336760560] [2023-12-02 16:21:50,480 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 16:21:50,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:50,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:50,481 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:21:50,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 16:21:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:50,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-02 16:21:50,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:52,010 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:52,010 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:21:53,668 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:21:53,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336760560] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:21:53,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1772623346] [2023-12-02 16:21:53,670 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 16:21:53,670 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:21:53,670 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:21:53,670 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:21:53,670 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:21:53,851 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:21:55,747 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2207#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~sum~0#1|)) (<= |ULTIMATE.start_main_~n~0#1| 100) (<= |ULTIMATE.start_main_~i~0#1| 99) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:21:55,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:21:55,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:21:55,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2023-12-02 16:21:55,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85275393] [2023-12-02 16:21:55,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:21:55,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-12-02 16:21:55,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:55,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-12-02 16:21:55,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=923, Invalid=8977, Unknown=0, NotChecked=0, Total=9900 [2023-12-02 16:21:55,753 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand has 95 states, 94 states have (on average 2.5319148936170213) internal successors, (238), 95 states have internal predecessors, (238), 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) [2023-12-02 16:22:03,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:22:03,202 INFO L93 Difference]: Finished difference Result 162 states and 177 transitions. [2023-12-02 16:22:03,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-12-02 16:22:03,203 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.5319148936170213) internal successors, (238), 95 states have internal predecessors, (238), 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 80 [2023-12-02 16:22:03,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:22:03,205 INFO L225 Difference]: With dead ends: 162 [2023-12-02 16:22:03,205 INFO L226 Difference]: Without dead ends: 161 [2023-12-02 16:22:03,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 157 SyntacticMatches, 15 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5825 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=3917, Invalid=21523, Unknown=0, NotChecked=0, Total=25440 [2023-12-02 16:22:03,213 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 207 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:22:03,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 3 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 16:22:03,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-02 16:22:03,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-12-02 16:22:03,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.00625) internal successors, (161), 160 states have internal predecessors, (161), 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) [2023-12-02 16:22:03,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2023-12-02 16:22:03,228 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 80 [2023-12-02 16:22:03,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:22:03,228 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2023-12-02 16:22:03,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.5319148936170213) internal successors, (238), 95 states have internal predecessors, (238), 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) [2023-12-02 16:22:03,228 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2023-12-02 16:22:03,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-02 16:22:03,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:22:03,231 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 1, 1, 1] [2023-12-02 16:22:03,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-02 16:22:03,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:22:03,431 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:22:03,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:22:03,432 INFO L85 PathProgramCache]: Analyzing trace with hash -454161257, now seen corresponding path program 5 times [2023-12-02 16:22:03,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:22:03,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597967417] [2023-12-02 16:22:03,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:22:03,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:22:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:22:07,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:22:07,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:22:07,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597967417] [2023-12-02 16:22:07,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597967417] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:22:07,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10987441] [2023-12-02 16:22:07,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:22:07,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:22:07,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:22:07,704 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:22:07,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 16:22:07,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2023-12-02 16:22:07,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:22:07,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 96 conjunts are in the unsatisfiable core [2023-12-02 16:22:07,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:22:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:22:14,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:22:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:22:24,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10987441] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:22:24,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1190757424] [2023-12-02 16:22:24,864 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 16:22:24,864 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:22:24,864 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:22:24,864 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:22:24,864 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:22:25,046 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:22:33,869 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3864#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~sum~0#1|)) (<= |ULTIMATE.start_main_~n~0#1| 100) (<= |ULTIMATE.start_main_~i~0#1| 99) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:22:33,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:22:33,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:22:33,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2023-12-02 16:22:33,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650114322] [2023-12-02 16:22:33,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:22:33,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2023-12-02 16:22:33,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:22:33,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2023-12-02 16:22:33,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2436, Invalid=35784, Unknown=0, NotChecked=0, Total=38220 [2023-12-02 16:22:33,884 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand has 191 states, 190 states have (on average 2.5157894736842104) internal successors, (478), 191 states have internal predecessors, (478), 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) [2023-12-02 16:24:41,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:24:41,900 INFO L93 Difference]: Finished difference Result 322 states and 353 transitions. [2023-12-02 16:24:41,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2023-12-02 16:24:41,901 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 2.5157894736842104) internal successors, (478), 191 states have internal predecessors, (478), 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 160 [2023-12-02 16:24:41,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:24:41,904 INFO L225 Difference]: With dead ends: 322 [2023-12-02 16:24:41,904 INFO L226 Difference]: Without dead ends: 321 [2023-12-02 16:24:41,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 317 SyntacticMatches, 31 SemanticMatches, 372 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27788 ImplicationChecksByTransitivity, 145.5s TimeCoverageRelationStatistics Valid=20453, Invalid=119049, Unknown=0, NotChecked=0, Total=139502 [2023-12-02 16:24:41,920 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1569 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16165 mSolverCounterSat, 1309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 17474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 16165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:24:41,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 2 Invalid, 17474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1309 Valid, 16165 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-02 16:24:41,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-02 16:24:42,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2023-12-02 16:24:42,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.003125) internal successors, (321), 320 states have internal predecessors, (321), 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) [2023-12-02 16:24:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2023-12-02 16:24:42,008 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 160 [2023-12-02 16:24:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:24:42,009 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2023-12-02 16:24:42,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 2.5157894736842104) internal successors, (478), 191 states have internal predecessors, (478), 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) [2023-12-02 16:24:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2023-12-02 16:24:42,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-12-02 16:24:42,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:24:42,017 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 63, 63, 63, 1, 1, 1] [2023-12-02 16:24:42,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 16:24:42,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 16:24:42,219 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:24:42,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:24:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1943751831, now seen corresponding path program 6 times [2023-12-02 16:24:42,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:24:42,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040517496] [2023-12-02 16:24:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:24:42,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:24:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:24:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:24:58,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:24:58,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040517496] [2023-12-02 16:24:58,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040517496] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:24:58,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032442455] [2023-12-02 16:24:58,330 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 16:24:58,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:24:58,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:24:58,331 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:24:58,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 16:24:58,502 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 16:24:58,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:24:58,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 192 conjunts are in the unsatisfiable core [2023-12-02 16:24:58,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:25:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:25:21,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:25:52,694 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:25:52,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032442455] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:25:52,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2058728895] [2023-12-02 16:25:52,697 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-12-02 16:25:52,697 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:25:52,697 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:25:52,698 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:25:52,698 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:25:52,876 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:26:17,272 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7293#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~sum~0#1|)) (<= |ULTIMATE.start_main_~n~0#1| 100) (<= |ULTIMATE.start_main_~i~0#1| 99) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:26:17,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:26:17,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:26:17,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 382 [2023-12-02 16:26:17,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756555965] [2023-12-02 16:26:17,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:26:17,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2023-12-02 16:26:17,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:26:17,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2023-12-02 16:26:17,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12875, Invalid=137281, Unknown=0, NotChecked=0, Total=150156 [2023-12-02 16:26:17,287 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand has 383 states, 382 states have (on average 2.507853403141361) internal successors, (958), 383 states have internal predecessors, (958), 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) [2023-12-02 16:29:45,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:29:45,601 INFO L93 Difference]: Finished difference Result 642 states and 705 transitions. [2023-12-02 16:29:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-12-02 16:29:45,602 INFO L78 Accepts]: Start accepts. Automaton has has 383 states, 382 states have (on average 2.507853403141361) internal successors, (958), 383 states have internal predecessors, (958), 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 320 [2023-12-02 16:29:45,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:29:45,606 INFO L225 Difference]: With dead ends: 642 [2023-12-02 16:29:45,606 INFO L226 Difference]: Without dead ends: 641 [2023-12-02 16:29:45,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1338 GetRequests, 637 SyntacticMatches, 63 SemanticMatches, 638 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95513 ImplicationChecksByTransitivity, 268.9s TimeCoverageRelationStatistics Valid=60149, Invalid=348811, Unknown=0, NotChecked=0, Total=408960 [2023-12-02 16:29:45,625 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2462 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 49260 mSolverCounterSat, 2455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2462 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 51715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2455 IncrementalHoareTripleChecker+Valid, 49260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:29:45,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2462 Valid, 3 Invalid, 51715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2455 Valid, 49260 Invalid, 0 Unknown, 0 Unchecked, 21.4s Time] [2023-12-02 16:29:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-12-02 16:29:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2023-12-02 16:29:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 640 states have (on average 1.0015625) internal successors, (641), 640 states have internal predecessors, (641), 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) [2023-12-02 16:29:45,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 641 transitions. [2023-12-02 16:29:45,692 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 641 transitions. Word has length 320 [2023-12-02 16:29:45,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:29:45,693 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 641 transitions. [2023-12-02 16:29:45,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 383 states, 382 states have (on average 2.507853403141361) internal successors, (958), 383 states have internal predecessors, (958), 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) [2023-12-02 16:29:45,694 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 641 transitions. [2023-12-02 16:29:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2023-12-02 16:29:45,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:29:45,705 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 127, 127, 127, 1, 1, 1] [2023-12-02 16:29:45,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 16:29:45,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:29:45,905 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:29:45,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:29:45,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1186319511, now seen corresponding path program 7 times [2023-12-02 16:29:45,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:29:45,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642274305] [2023-12-02 16:29:45,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:29:45,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:29:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:30:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 40386 backedges. 0 proven. 40386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:30:46,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:30:46,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642274305] [2023-12-02 16:30:46,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642274305] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:30:46,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861641069] [2023-12-02 16:30:46,785 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 16:30:46,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:30:46,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:30:46,786 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:30:46,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 16:30:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:30:47,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 203 conjunts are in the unsatisfiable core [2023-12-02 16:30:47,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:31:40,788 INFO L134 CoverageAnalysis]: Checked inductivity of 40386 backedges. 38577 proven. 0 refuted. 0 times theorem prover too weak. 1809 trivial. 0 not checked. [2023-12-02 16:31:40,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:31:40,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861641069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:31:40,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:31:40,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203] imperfect sequences [256] total 458 [2023-12-02 16:31:40,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765952320] [2023-12-02 16:31:40,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:31:40,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2023-12-02 16:31:40,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:31:40,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2023-12-02 16:31:40,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10913, Invalid=198393, Unknown=0, NotChecked=0, Total=209306 [2023-12-02 16:31:40,800 INFO L87 Difference]: Start difference. First operand 641 states and 641 transitions. Second operand has 203 states, 203 states have (on average 2.5073891625615765) internal successors, (509), 203 states have internal predecessors, (509), 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) [2023-12-02 16:31:58,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:31:58,041 INFO L93 Difference]: Finished difference Result 641 states and 641 transitions. [2023-12-02 16:31:58,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2023-12-02 16:31:58,042 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 2.5073891625615765) internal successors, (509), 203 states have internal predecessors, (509), 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 640 [2023-12-02 16:31:58,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:31:58,043 INFO L225 Difference]: With dead ends: 641 [2023-12-02 16:31:58,043 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 16:31:58,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 995 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 556 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19701 ImplicationChecksByTransitivity, 94.6s TimeCoverageRelationStatistics Valid=26163, Invalid=284643, Unknown=0, NotChecked=0, Total=310806 [2023-12-02 16:31:58,056 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 200 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 4773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:31:58,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1 Invalid, 4773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 16:31:58,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 16:31:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 16:31:58,056 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) [2023-12-02 16:31:58,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 16:31:58,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 640 [2023-12-02 16:31:58,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:31:58,057 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 16:31:58,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 2.5073891625615765) internal successors, (509), 203 states have internal predecessors, (509), 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) [2023-12-02 16:31:58,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 16:31:58,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 16:31:58,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 16:31:58,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 16:31:58,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 16:31:58,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 16:31:58,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 16:31:58,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 16:31:58,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 16:32:07,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 19 30) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-12-02 16:32:07,039 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-12-02 16:32:07,040 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2023-12-02 16:32:07,041 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 27) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_main_~sum~0#1| 0)) (.cse4 (+ |ULTIMATE.start_main_~sum~0#1| (* |ULTIMATE.start_main_~n~0#1| 13))) (.cse3 (+ (* |ULTIMATE.start_main_~n~0#1| 61) |ULTIMATE.start_main_~sum~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~n~0#1| 100)) (.cse1 (<= 0 |ULTIMATE.start_main_~sum~0#1|))) (or (and .cse0 .cse1 (<= 78 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 49 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147482471)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 39) (<= |ULTIMATE.start_main_~sum~0#1| 741)) (and (= 41 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 820) .cse0 .cse1) (and (= 51 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 1275)) (and (= 21 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 210)) (and (= |ULTIMATE.start_main_~i~0#1| 4) .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 6) (<= (+ (* 7 |ULTIMATE.start_main_~n~0#1|) |ULTIMATE.start_main_~sum~0#1|) 706)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 8) (<= |ULTIMATE.start_main_~sum~0#1| 28)) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse0) (and .cse0 .cse1 (<= 95 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 32 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147483151)) (and .cse0 .cse1 (<= 99 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~sum~0#1| (* |ULTIMATE.start_main_~i~0#1| 28)) 2147483269)) (and .cse0 .cse1 (<= 98 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 29 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147483241)) (and .cse0 .cse1 (<= 83 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 44 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147482701)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 38) (<= |ULTIMATE.start_main_~sum~0#1| 703)) (and .cse0 (<= (+ (* 62 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147481756) .cse1 (<= 65 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (<= (+ (* 47 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147482566) (<= 80 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 28) .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 378)) (and (<= |ULTIMATE.start_main_~sum~0#1| 1485) .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 55)) (and (= |ULTIMATE.start_main_~i~0#1| 34) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 561)) (and .cse0 .cse1 (<= 93 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~sum~0#1| (* |ULTIMATE.start_main_~i~0#1| 34)) 2147483086)) (and (<= |ULTIMATE.start_main_~sum~0#1| 1830) .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 61)) (and .cse0 .cse1 (<= (+ (* |ULTIMATE.start_main_~i~0#1| 54) |ULTIMATE.start_main_~sum~0#1|) 2147482216) (<= 73 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~sum~0#1| 1891) .cse1 (= 62 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~sum~0#1| 300) .cse1 (= |ULTIMATE.start_main_~i~0#1| 25)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 861) (= 42 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 27) (<= |ULTIMATE.start_main_~sum~0#1| 351)) (and (= |ULTIMATE.start_main_~i~0#1| 11) (<= |ULTIMATE.start_main_~sum~0#1| 55) .cse1 (<= .cse3 6155)) (and (= 29 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 406)) (and .cse0 .cse1 (<= 69 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* |ULTIMATE.start_main_~i~0#1| 58) |ULTIMATE.start_main_~sum~0#1|) 2147481994)) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 26) .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 325)) (and .cse0 (<= 91 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= (+ (* |ULTIMATE.start_main_~i~0#1| 36) |ULTIMATE.start_main_~sum~0#1|) 2147483017)) (and .cse0 (<= (+ (* 42 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147482786) .cse1 (<= 85 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 1653) (= |ULTIMATE.start_main_~i~0#1| 58)) (and .cse0 .cse1 (<= (+ (* 52 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147482321) (<= 75 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (= 31 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 465)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 231) (= 22 |ULTIMATE.start_main_~i~0#1|)) (and (= 5 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= .cse3 6110) (<= |ULTIMATE.start_main_~sum~0#1| 10)) (and .cse0 .cse1 (= 56 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 1540)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 24) (<= |ULTIMATE.start_main_~sum~0#1| 276)) (and (= 35 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 595) .cse0 .cse1) (and .cse0 (<= (+ (* |ULTIMATE.start_main_~i~0#1| 50) |ULTIMATE.start_main_~sum~0#1|) 2147482422) .cse1 (<= 77 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 1081) (= 47 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~sum~0#1| 190) .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 20)) (and .cse2 .cse0 (= |ULTIMATE.start_main_~i~0#1| 1)) (and (<= 92 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= (+ (* 35 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147483052)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 1225) (= |ULTIMATE.start_main_~i~0#1| 50)) (and .cse0 .cse1 (<= 74 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~sum~0#1| (* 53 |ULTIMATE.start_main_~i~0#1|)) 2147482269)) (and .cse0 .cse1 (<= (+ (* 31 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147483182) (<= 96 |ULTIMATE.start_main_~i~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| 15) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 105)) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 36) .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 630)) (and (<= |ULTIMATE.start_main_~sum~0#1| 3) (= 3 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= .cse4 1303)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 37) (<= |ULTIMATE.start_main_~sum~0#1| 666)) (and .cse0 .cse1 (<= 94 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* |ULTIMATE.start_main_~i~0#1| 33) |ULTIMATE.start_main_~sum~0#1|) 2147483119)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 60) (<= |ULTIMATE.start_main_~sum~0#1| 1770)) (and (= 46 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 1035) .cse0 .cse1) (and (= |ULTIMATE.start_main_~i~0#1| 17) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 136)) (and .cse0 .cse1 (<= 97 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 30 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147483212)) (and (<= (+ (* 59 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147481936) .cse0 .cse1 (<= 68 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 1596) (= 57 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~sum~0#1| 153) .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 18)) (and (<= 79 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= (+ (* |ULTIMATE.start_main_~i~0#1| 48) |ULTIMATE.start_main_~sum~0#1|) 2147482519)) (and .cse0 (<= |ULTIMATE.start_main_~sum~0#1| 1326) .cse1 (= 52 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= (+ |ULTIMATE.start_main_~sum~0#1| (* |ULTIMATE.start_main_~i~0#1| 27)) 2147483296) .cse1 (<= 100 |ULTIMATE.start_main_~i~0#1|)) (and (<= .cse4 1301) .cse1 (= 2 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 1)) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~sum~0#1| (* |ULTIMATE.start_main_~i~0#1| 60)) 2147481877) (<= 67 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~sum~0#1| 496) .cse0 .cse1 (= 32 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 76 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= (+ |ULTIMATE.start_main_~sum~0#1| (* 51 |ULTIMATE.start_main_~i~0#1|)) 2147482372)) (and (<= 72 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= (+ (* |ULTIMATE.start_main_~i~0#1| 55) |ULTIMATE.start_main_~sum~0#1|) 2147482162)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 120) (= 16 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 10) (<= |ULTIMATE.start_main_~sum~0#1| 45)) (and (<= 82 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* |ULTIMATE.start_main_~i~0#1| 45) |ULTIMATE.start_main_~sum~0#1|) 2147482657) .cse0 .cse1) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 91) (= 14 |ULTIMATE.start_main_~i~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| 43) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 903)) (and (<= (+ (* 57 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147482051) .cse0 .cse1 (<= 70 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 1176) (= 49 |ULTIMATE.start_main_~i~0#1|)) (and .cse1 (<= .cse3 6121) (= 7 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 21)) (and .cse0 .cse1 (= 6 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 15)) (and .cse0 .cse1 (<= (+ (* |ULTIMATE.start_main_~i~0#1| 38) |ULTIMATE.start_main_~sum~0#1|) 2147482944) (<= 89 |ULTIMATE.start_main_~i~0#1|)) (and (<= (+ (* |ULTIMATE.start_main_~i~0#1| 43) |ULTIMATE.start_main_~sum~0#1|) 2147482744) .cse0 .cse1 (<= 84 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 1711) (= 59 |ULTIMATE.start_main_~i~0#1|)) (and (= 23 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 253)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 78) (= |ULTIMATE.start_main_~i~0#1| 13)) (and .cse0 (<= (+ (* 56 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147482107) .cse1 (<= 71 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~sum~0#1| 1431) .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 54)) (and (<= (+ (* |ULTIMATE.start_main_~i~0#1| 39) |ULTIMATE.start_main_~sum~0#1|) 2147482906) .cse0 (<= 88 |ULTIMATE.start_main_~i~0#1|) .cse1) (and .cse0 .cse1 (<= (+ (* 46 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147482612) (<= 81 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 .cse1 (= 53 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 1378)) (and (<= 90 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= (+ (* |ULTIMATE.start_main_~i~0#1| 37) |ULTIMATE.start_main_~sum~0#1|) 2147482981)) (and .cse0 .cse1 (<= 87 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~sum~0#1| (* 40 |ULTIMATE.start_main_~i~0#1|)) 2147482867)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 33) (<= |ULTIMATE.start_main_~sum~0#1| 528)) (and (<= 64 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= (+ (* |ULTIMATE.start_main_~i~0#1| 63) |ULTIMATE.start_main_~sum~0#1|) 2147481694)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 1128) (= |ULTIMATE.start_main_~i~0#1| 48)) (and (= 30 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 435)) (and (= 9 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= .cse3 6136) (<= |ULTIMATE.start_main_~sum~0#1| 36)) (and (= |ULTIMATE.start_main_~i~0#1| 12) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 66)) (and (<= 66 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= (+ (* |ULTIMATE.start_main_~i~0#1| 61) |ULTIMATE.start_main_~sum~0#1|) 2147481817)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 990) (= |ULTIMATE.start_main_~i~0#1| 45)) (and .cse0 .cse1 (= 19 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 171)) (and (= |ULTIMATE.start_main_~i~0#1| 63) .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 1953)) (and (<= 86 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= (+ (* 41 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~sum~0#1|) 2147482827)) (and .cse0 .cse1 (= 40 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sum~0#1| 780)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~sum~0#1| 946) (= 44 |ULTIMATE.start_main_~i~0#1|)))) [2023-12-02 16:32:07,043 INFO L445 BasicCegarLoop]: Path program histogram: [7, 2, 1, 1, 1, 1, 1] [2023-12-02 16:32:07,045 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:32:07,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:32:07 BoogieIcfgContainer [2023-12-02 16:32:07,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:32:07,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:32:07,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:32:07,081 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:32:07,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:21:37" (3/4) ... [2023-12-02 16:32:07,083 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 16:32:07,090 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 16:32:07,090 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-02 16:32:07,091 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 16:32:07,091 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:32:07,194 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 16:32:07,194 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 16:32:07,194 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:32:07,195 INFO L158 Benchmark]: Toolchain (without parser) took 629854.28ms. Allocated memory was 144.7MB in the beginning and 1.1GB in the end (delta: 956.3MB). Free memory was 99.1MB in the beginning and 764.1MB in the end (delta: -665.0MB). Peak memory consumption was 292.1MB. Max. memory is 16.1GB. [2023-12-02 16:32:07,195 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:32:07,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.01ms. Allocated memory is still 144.7MB. Free memory was 99.1MB in the beginning and 89.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 16:32:07,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.00ms. Allocated memory is still 144.7MB. Free memory was 89.0MB in the beginning and 87.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:32:07,196 INFO L158 Benchmark]: Boogie Preprocessor took 23.11ms. Allocated memory is still 144.7MB. Free memory was 87.3MB in the beginning and 86.5MB in the end (delta: 803.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:32:07,197 INFO L158 Benchmark]: RCFGBuilder took 336.86ms. Allocated memory is still 144.7MB. Free memory was 86.5MB in the beginning and 74.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 16:32:07,197 INFO L158 Benchmark]: TraceAbstraction took 629110.39ms. Allocated memory was 144.7MB in the beginning and 1.1GB in the end (delta: 956.3MB). Free memory was 73.9MB in the beginning and 768.3MB in the end (delta: -694.4MB). Peak memory consumption was 757.6MB. Max. memory is 16.1GB. [2023-12-02 16:32:07,197 INFO L158 Benchmark]: Witness Printer took 114.10ms. Allocated memory is still 1.1GB. Free memory was 768.3MB in the beginning and 764.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:32:07,199 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.01ms. Allocated memory is still 144.7MB. Free memory was 99.1MB in the beginning and 89.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.00ms. Allocated memory is still 144.7MB. Free memory was 89.0MB in the beginning and 87.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.11ms. Allocated memory is still 144.7MB. Free memory was 87.3MB in the beginning and 86.5MB in the end (delta: 803.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.86ms. Allocated memory is still 144.7MB. Free memory was 86.5MB in the beginning and 74.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 629110.39ms. Allocated memory was 144.7MB in the beginning and 1.1GB in the end (delta: 956.3MB). Free memory was 73.9MB in the beginning and 768.3MB in the end (delta: -694.4MB). Peak memory consumption was 757.6MB. Max. memory is 16.1GB. * Witness Printer took 114.10ms. Allocated memory is still 1.1GB. Free memory was 768.3MB in the beginning and 764.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 629.0s, OverallIterations: 14, TraceHistogramMax: 128, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 364.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4608 SdHoareTripleChecker+Valid, 33.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4608 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 29.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 4060 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73883 IncrementalHoareTripleChecker+Invalid, 77943 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4060 mSolverCounterUnsat, 35 mSDtfsCounter, 73883 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3831 GetRequests, 1779 SyntacticMatches, 127 SemanticMatches, 1925 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150960 ImplicationChecksByTransitivity, 525.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=641occurred in iteration=13, InterpolantAutomatonStates: 808, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 5 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 102 NumberOfFragments, 1484 HoareAnnotationTreeSize, 1 FomulaSimplifications, 3998 FormulaSimplificationTreeSizeReduction, 3.9s HoareSimplificationTime, 1 FomulaSimplificationsInter, 5980 FormulaSimplificationTreeSizeReductionInter, 4.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 213.0s InterpolantComputationTime, 2658 NumberOfCodeBlocks, 2638 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 3295 ConstructedInterpolants, 0 QuantifiedInterpolants, 27591 SizeOfPredicates, 246 NumberOfNonLiveVariables, 3070 ConjunctsInSsa, 596 ConjunctsInUnsatCore, 32 InterpolantComputations, 6 PerfectInterpolantSequences, 40456/120226 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 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((n <= 100) && (0 <= sum)) && (78 <= i)) && (((49 * i) + sum) <= 2147482471)) || ((((n <= 100) && (0 <= sum)) && (i == 39)) && (sum <= 741))) || ((((41 == i) && (sum <= 820)) && (n <= 100)) && (0 <= sum))) || ((((51 == i) && (n <= 100)) && (0 <= sum)) && (sum <= 1275))) || ((((21 == i) && (n <= 100)) && (0 <= sum)) && (sum <= 210))) || ((((i == 4) && (0 <= sum)) && (sum <= 6)) && (((7 * n) + sum) <= 706))) || ((((n <= 100) && (0 <= sum)) && (i == 8)) && (sum <= 28))) || (((i == 0) && (sum == 0)) && (n <= 100))) || ((((n <= 100) && (0 <= sum)) && (95 <= i)) && (((32 * i) + sum) <= 2147483151))) || ((((n <= 100) && (0 <= sum)) && (99 <= i)) && ((sum + (i * 28)) <= 2147483269))) || ((((n <= 100) && (0 <= sum)) && (98 <= i)) && (((29 * i) + sum) <= 2147483241))) || ((((n <= 100) && (0 <= sum)) && (83 <= i)) && (((44 * i) + sum) <= 2147482701))) || ((((n <= 100) && (0 <= sum)) && (i == 38)) && (sum <= 703))) || ((((n <= 100) && (((62 * i) + sum) <= 2147481756)) && (0 <= sum)) && (65 <= i))) || ((((n <= 100) && (0 <= sum)) && (((47 * i) + sum) <= 2147482566)) && (80 <= i))) || ((((n <= 100) && (i == 28)) && (0 <= sum)) && (sum <= 378))) || ((((sum <= 1485) && (n <= 100)) && (0 <= sum)) && (i == 55))) || ((((i == 34) && (n <= 100)) && (0 <= sum)) && (sum <= 561))) || ((((n <= 100) && (0 <= sum)) && (93 <= i)) && ((sum + (i * 34)) <= 2147483086))) || ((((sum <= 1830) && (n <= 100)) && (0 <= sum)) && (i == 61))) || ((((n <= 100) && (0 <= sum)) && (((i * 54) + sum) <= 2147482216)) && (73 <= i))) || ((((n <= 100) && (sum <= 1891)) && (0 <= sum)) && (62 == i))) || ((((n <= 100) && (sum <= 300)) && (0 <= sum)) && (i == 25))) || ((((n <= 100) && (0 <= sum)) && (sum <= 861)) && (42 == i))) || ((((n <= 100) && (0 <= sum)) && (i == 27)) && (sum <= 351))) || ((((i == 11) && (sum <= 55)) && (0 <= sum)) && (((n * 61) + sum) <= 6155))) || ((((29 == i) && (n <= 100)) && (0 <= sum)) && (sum <= 406))) || ((((n <= 100) && (0 <= sum)) && (69 <= i)) && (((i * 58) + sum) <= 2147481994))) || ((((n <= 100) && (i == 26)) && (0 <= sum)) && (sum <= 325))) || ((((n <= 100) && (91 <= i)) && (0 <= sum)) && (((i * 36) + sum) <= 2147483017))) || ((((n <= 100) && (((42 * i) + sum) <= 2147482786)) && (0 <= sum)) && (85 <= i))) || ((((n <= 100) && (0 <= sum)) && (sum <= 1653)) && (i == 58))) || ((((n <= 100) && (0 <= sum)) && (((52 * i) + sum) <= 2147482321)) && (75 <= i))) || ((((n <= 100) && (0 <= sum)) && (31 == i)) && (sum <= 465))) || ((((n <= 100) && (0 <= sum)) && (sum <= 231)) && (22 == i))) || ((((5 == i) && (0 <= sum)) && (((n * 61) + sum) <= 6110)) && (sum <= 10))) || ((((n <= 100) && (0 <= sum)) && (56 == i)) && (sum <= 1540))) || ((((n <= 100) && (0 <= sum)) && (i == 24)) && (sum <= 276))) || ((((35 == i) && (sum <= 595)) && (n <= 100)) && (0 <= sum))) || ((((n <= 100) && (((i * 50) + sum) <= 2147482422)) && (0 <= sum)) && (77 <= i))) || ((((n <= 100) && (0 <= sum)) && (sum <= 1081)) && (47 == i))) || ((((sum <= 190) && (n <= 100)) && (0 <= sum)) && (i == 20))) || (((sum == 0) && (n <= 100)) && (i == 1))) || ((((92 <= i) && (n <= 100)) && (0 <= sum)) && (((35 * i) + sum) <= 2147483052))) || ((((n <= 100) && (0 <= sum)) && (sum <= 1225)) && (i == 50))) || ((((n <= 100) && (0 <= sum)) && (74 <= i)) && ((sum + (53 * i)) <= 2147482269))) || ((((n <= 100) && (0 <= sum)) && (((31 * i) + sum) <= 2147483182)) && (96 <= i))) || ((((i == 15) && (n <= 100)) && (0 <= sum)) && (sum <= 105))) || ((((n <= 100) && (i == 36)) && (0 <= sum)) && (sum <= 630))) || ((((sum <= 3) && (3 == i)) && (0 <= sum)) && ((sum + (n * 13)) <= 1303))) || ((((n <= 100) && (0 <= sum)) && (i == 37)) && (sum <= 666))) || ((((n <= 100) && (0 <= sum)) && (94 <= i)) && (((i * 33) + sum) <= 2147483119))) || ((((n <= 100) && (0 <= sum)) && (i == 60)) && (sum <= 1770))) || ((((46 == i) && (sum <= 1035)) && (n <= 100)) && (0 <= sum))) || ((((i == 17) && (n <= 100)) && (0 <= sum)) && (sum <= 136))) || ((((n <= 100) && (0 <= sum)) && (97 <= i)) && (((30 * i) + sum) <= 2147483212))) || ((((((59 * i) + sum) <= 2147481936) && (n <= 100)) && (0 <= sum)) && (68 <= i))) || ((((n <= 100) && (0 <= sum)) && (sum <= 1596)) && (57 == i))) || ((((sum <= 153) && (n <= 100)) && (0 <= sum)) && (i == 18))) || ((((79 <= i) && (n <= 100)) && (0 <= sum)) && (((i * 48) + sum) <= 2147482519))) || ((((n <= 100) && (sum <= 1326)) && (0 <= sum)) && (52 == i))) || ((((n <= 100) && ((sum + (i * 27)) <= 2147483296)) && (0 <= sum)) && (100 <= i))) || (((((sum + (n * 13)) <= 1301) && (0 <= sum)) && (2 == i)) && (sum <= 1))) || ((((n <= 100) && (0 <= sum)) && ((sum + (i * 60)) <= 2147481877)) && (67 <= i))) || ((((sum <= 496) && (n <= 100)) && (0 <= sum)) && (32 == i))) || ((((n <= 100) && (76 <= i)) && (0 <= sum)) && ((sum + (51 * i)) <= 2147482372))) || ((((72 <= i) && (n <= 100)) && (0 <= sum)) && (((i * 55) + sum) <= 2147482162))) || ((((n <= 100) && (0 <= sum)) && (sum <= 120)) && (16 == i))) || ((((n <= 100) && (0 <= sum)) && (i == 10)) && (sum <= 45))) || ((((82 <= i) && (((i * 45) + sum) <= 2147482657)) && (n <= 100)) && (0 <= sum))) || ((((n <= 100) && (0 <= sum)) && (sum <= 91)) && (14 == i))) || ((((i == 43) && (n <= 100)) && (0 <= sum)) && (sum <= 903))) || ((((((57 * i) + sum) <= 2147482051) && (n <= 100)) && (0 <= sum)) && (70 <= i))) || ((((n <= 100) && (0 <= sum)) && (sum <= 1176)) && (49 == i))) || ((((0 <= sum) && (((n * 61) + sum) <= 6121)) && (7 == i)) && (sum <= 21))) || ((((n <= 100) && (0 <= sum)) && (6 == i)) && (sum <= 15))) || ((((n <= 100) && (0 <= sum)) && (((i * 38) + sum) <= 2147482944)) && (89 <= i))) || ((((((i * 43) + sum) <= 2147482744) && (n <= 100)) && (0 <= sum)) && (84 <= i))) || ((((n <= 100) && (0 <= sum)) && (sum <= 1711)) && (59 == i))) || ((((23 == i) && (n <= 100)) && (0 <= sum)) && (sum <= 253))) || ((((n <= 100) && (0 <= sum)) && (sum <= 78)) && (i == 13))) || ((((n <= 100) && (((56 * i) + sum) <= 2147482107)) && (0 <= sum)) && (71 <= i))) || ((((sum <= 1431) && (n <= 100)) && (0 <= sum)) && (i == 54))) || ((((((i * 39) + sum) <= 2147482906) && (n <= 100)) && (88 <= i)) && (0 <= sum))) || ((((n <= 100) && (0 <= sum)) && (((46 * i) + sum) <= 2147482612)) && (81 <= i))) || ((((n <= 100) && (0 <= sum)) && (53 == i)) && (sum <= 1378))) || ((((90 <= i) && (n <= 100)) && (0 <= sum)) && (((i * 37) + sum) <= 2147482981))) || ((((n <= 100) && (0 <= sum)) && (87 <= i)) && ((sum + (40 * i)) <= 2147482867))) || ((((n <= 100) && (0 <= sum)) && (i == 33)) && (sum <= 528))) || ((((64 <= i) && (n <= 100)) && (0 <= sum)) && (((i * 63) + sum) <= 2147481694))) || ((((n <= 100) && (0 <= sum)) && (sum <= 1128)) && (i == 48))) || ((((30 == i) && (n <= 100)) && (0 <= sum)) && (sum <= 435))) || ((((9 == i) && (0 <= sum)) && (((n * 61) + sum) <= 6136)) && (sum <= 36))) || ((((i == 12) && (n <= 100)) && (0 <= sum)) && (sum <= 66))) || ((((66 <= i) && (n <= 100)) && (0 <= sum)) && (((i * 61) + sum) <= 2147481817))) || ((((n <= 100) && (0 <= sum)) && (sum <= 990)) && (i == 45))) || ((((n <= 100) && (0 <= sum)) && (19 == i)) && (sum <= 171))) || ((((i == 63) && (n <= 100)) && (0 <= sum)) && (sum <= 1953))) || ((((86 <= i) && (n <= 100)) && (0 <= sum)) && (((41 * i) + sum) <= 2147482827))) || ((((n <= 100) && (0 <= sum)) && (40 == i)) && (sum <= 780))) || ((((n <= 100) && (0 <= sum)) && (sum <= 946)) && (44 == i))) RESULT: Ultimate proved your program to be correct! [2023-12-02 16:32:07,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03208cec-6ebc-414c-9cc7-6c73662abfc8/bin/utaipan-verify-nQ1chXbOIh/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