./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/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_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/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_76abfe11-257d-4351-bcb3-36e72d1ab51f/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 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:05:09,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:05:09,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 20:05:09,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:05:09,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:05:09,141 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:05:09,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:05:09,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:05:09,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:05:09,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:05:09,144 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 20:05:09,144 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 20:05:09,145 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 20:05:09,145 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 20:05:09,146 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 20:05:09,146 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 20:05:09,147 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 20:05:09,147 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 20:05:09,148 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 20:05:09,149 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 20:05:09,149 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 20:05:09,153 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 20:05:09,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:05:09,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:05:09,154 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:05:09,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:05:09,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:05:09,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:05:09,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:05:09,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:05:09,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:05:09,156 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 20:05:09,156 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:05:09,157 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:05:09,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:05:09,157 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:05:09,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:05:09,158 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 20:05:09,158 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:05:09,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:05:09,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:05:09,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:05:09,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:05:09,159 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 20:05:09,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:05:09,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:05:09,160 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:05:09,160 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 20:05:09,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 20:05:09,160 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_76abfe11-257d-4351-bcb3-36e72d1ab51f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 [2023-12-02 20:05:09,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:05:09,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:05:09,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:05:09,384 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:05:09,385 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:05:09,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2023-12-02 20:05:12,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:05:12,380 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:05:12,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2023-12-02 20:05:12,388 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/data/a755f2827/a302a1766695420d9a3d47b8c2ba009c/FLAGa1ebc7473 [2023-12-02 20:05:12,403 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/data/a755f2827/a302a1766695420d9a3d47b8c2ba009c [2023-12-02 20:05:12,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:05:12,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:05:12,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:05:12,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:05:12,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:05:12,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7094c9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12, skipping insertion in model container [2023-12-02 20:05:12,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,438 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:05:12,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:05:12,602 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:05:12,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:05:12,631 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:05:12,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12 WrapperNode [2023-12-02 20:05:12,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:05:12,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:05:12,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:05:12,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:05:12,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,661 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 40 [2023-12-02 20:05:12,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:05:12,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:05:12,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:05:12,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:05:12,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:05:12,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:05:12,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:05:12,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:05:12,682 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (1/1) ... [2023-12-02 20:05:12,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:05:12,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:05:12,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:05:12,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:05:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:05:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:05:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:05:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:05:12,795 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:05:12,798 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:05:12,907 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:05:12,946 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:05:12,946 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 20:05:12,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:12 BoogieIcfgContainer [2023-12-02 20:05:12,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:05:12,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 20:05:12,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 20:05:12,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 20:05:12,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:05:12" (1/3) ... [2023-12-02 20:05:12,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217e1623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:05:12, skipping insertion in model container [2023-12-02 20:05:12,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:12" (2/3) ... [2023-12-02 20:05:12,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217e1623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:05:12, skipping insertion in model container [2023-12-02 20:05:12,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:12" (3/3) ... [2023-12-02 20:05:12,958 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark10_conjunctive.i [2023-12-02 20:05:12,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 20:05:12,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 20:05:13,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 20:05:13,052 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;@435f0bc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:05:13,053 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 20:05:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:05:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 20:05:13,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:13,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 20:05:13,075 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 20:05:13,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:13,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2450102, now seen corresponding path program 1 times [2023-12-02 20:05:13,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:13,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921611907] [2023-12-02 20:05:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:13,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:13,261 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 20:05:13,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:13,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921611907] [2023-12-02 20:05:13,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921611907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:05:13,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:05:13,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:05:13,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9619856] [2023-12-02 20:05:13,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:05:13,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:05:13,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:13,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:05:13,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:05:13,301 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 20:05:13,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:13,362 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-12-02 20:05:13,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:05:13,365 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 20:05:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:13,372 INFO L225 Difference]: With dead ends: 21 [2023-12-02 20:05:13,372 INFO L226 Difference]: Without dead ends: 15 [2023-12-02 20:05:13,374 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 20:05:13,378 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:05:13,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:05:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-02 20:05:13,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-12-02 20:05:13,403 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 20:05:13,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-02 20:05:13,405 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2023-12-02 20:05:13,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:13,405 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-12-02 20:05:13,406 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 20:05:13,406 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-02 20:05:13,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 20:05:13,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:13,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 20:05:13,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 20:05:13,407 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 20:05:13,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:13,408 INFO L85 PathProgramCache]: Analyzing trace with hash 75953212, now seen corresponding path program 1 times [2023-12-02 20:05:13,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:13,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718675536] [2023-12-02 20:05:13,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:13,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:13,459 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 20:05:13,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:13,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718675536] [2023-12-02 20:05:13,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718675536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:05:13,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:05:13,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:05:13,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128490380] [2023-12-02 20:05:13,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:05:13,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:05:13,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:13,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:05:13,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:05:13,463 INFO L87 Difference]: Start difference. First operand 14 states and 14 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 20:05:13,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:13,488 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-12-02 20:05:13,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:05:13,488 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 20:05:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:13,489 INFO L225 Difference]: With dead ends: 16 [2023-12-02 20:05:13,489 INFO L226 Difference]: Without dead ends: 15 [2023-12-02 20:05:13,489 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 20:05:13,491 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:05:13,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:05:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-02 20:05:13,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-02 20:05:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) 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 20:05:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-12-02 20:05:13,497 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2023-12-02 20:05:13,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:13,497 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-12-02 20:05:13,498 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 20:05:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-12-02 20:05:13,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 20:05:13,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:13,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 20:05:13,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 20:05:13,499 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 20:05:13,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:13,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1940417672, now seen corresponding path program 1 times [2023-12-02 20:05:13,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:13,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735442294] [2023-12-02 20:05:13,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:13,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:13,544 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 20:05:13,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:13,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735442294] [2023-12-02 20:05:13,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735442294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:05:13,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:05:13,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 20:05:13,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019689814] [2023-12-02 20:05:13,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:05:13,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:05:13,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:13,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:05:13,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:05:13,549 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:05:13,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:13,569 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-12-02 20:05:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:05:13,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-12-02 20:05:13,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:13,571 INFO L225 Difference]: With dead ends: 15 [2023-12-02 20:05:13,571 INFO L226 Difference]: Without dead ends: 14 [2023-12-02 20:05:13,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:05:13,573 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:05:13,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:05:13,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-12-02 20:05:13,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-12-02 20:05:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) 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 20:05:13,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-02 20:05:13,580 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2023-12-02 20:05:13,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:13,580 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-12-02 20:05:13,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:05:13,580 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-02 20:05:13,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 20:05:13,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:13,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:05:13,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 20:05:13,582 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 20:05:13,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:13,583 INFO L85 PathProgramCache]: Analyzing trace with hash -23405634, now seen corresponding path program 1 times [2023-12-02 20:05:13,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:13,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853840325] [2023-12-02 20:05:13,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:13,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:13,622 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 20:05:13,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:13,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853840325] [2023-12-02 20:05:13,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853840325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:05:13,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:05:13,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:05:13,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711878379] [2023-12-02 20:05:13,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:05:13,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:05:13,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:13,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:05:13,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:05:13,626 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 20:05:13,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:13,650 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-12-02 20:05:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:05:13,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 20:05:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:13,651 INFO L225 Difference]: With dead ends: 17 [2023-12-02 20:05:13,651 INFO L226 Difference]: Without dead ends: 16 [2023-12-02 20:05:13,652 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 20:05:13,653 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:05:13,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:05:13,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-02 20:05:13,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-12-02 20:05:13,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:05:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-12-02 20:05:13,660 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2023-12-02 20:05:13,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:13,660 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-12-02 20:05:13,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 20:05:13,660 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-12-02 20:05:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 20:05:13,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:13,661 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:05:13,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 20:05:13,662 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 20:05:13,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:13,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1492482369, now seen corresponding path program 1 times [2023-12-02 20:05:13,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:13,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802055956] [2023-12-02 20:05:13,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:13,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:13,742 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 20:05:13,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:13,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802055956] [2023-12-02 20:05:13,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802055956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:05:13,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:05:13,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:05:13,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779276786] [2023-12-02 20:05:13,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:05:13,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 20:05:13,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:13,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 20:05:13,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:05:13,745 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:05:13,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:13,794 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-12-02 20:05:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:05:13,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-02 20:05:13,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:13,796 INFO L225 Difference]: With dead ends: 16 [2023-12-02 20:05:13,796 INFO L226 Difference]: Without dead ends: 15 [2023-12-02 20:05:13,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 20:05:13,798 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:05:13,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:05:13,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-02 20:05:13,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-02 20:05:13,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) 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 20:05:13,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-12-02 20:05:13,803 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2023-12-02 20:05:13,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:13,804 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-12-02 20:05:13,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:05:13,804 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-12-02 20:05:13,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 20:05:13,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:13,805 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:05:13,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 20:05:13,805 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 20:05:13,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:13,806 INFO L85 PathProgramCache]: Analyzing trace with hash 977686867, now seen corresponding path program 1 times [2023-12-02 20:05:13,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:13,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379177188] [2023-12-02 20:05:13,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:13,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:13,873 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 20:05:13,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:13,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379177188] [2023-12-02 20:05:13,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379177188] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:05:13,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872319392] [2023-12-02 20:05:13,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:13,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:05:13,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:05:13,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:05:13,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 20:05:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:13,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 20:05:13,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:05:14,019 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 20:05:14,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:05:14,074 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 20:05:14,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872319392] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:05:14,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1172727029] [2023-12-02 20:05:14,092 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 20:05:14,092 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:05:14,094 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:05:14,099 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:05:14,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:05:14,404 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:05:14,697 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '289#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 20:05:14,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:05:14,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:05:14,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-12-02 20:05:14,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937878511] [2023-12-02 20:05:14,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:05:14,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 20:05:14,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:14,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 20:05:14,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-12-02 20:05:14,700 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 20:05:14,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:14,817 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2023-12-02 20:05:14,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:05:14,818 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 20:05:14,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:14,819 INFO L225 Difference]: With dead ends: 27 [2023-12-02 20:05:14,819 INFO L226 Difference]: Without dead ends: 26 [2023-12-02 20:05:14,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2023-12-02 20:05:14,820 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 20:05:14,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 7 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 20:05:14,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-12-02 20:05:14,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-12-02 20:05:14,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:05:14,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2023-12-02 20:05:14,827 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 11 [2023-12-02 20:05:14,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:14,827 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2023-12-02 20:05:14,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 20:05:14,828 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2023-12-02 20:05:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 20:05:14,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:14,828 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-02 20:05:14,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 20:05:15,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 20:05:15,035 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 20:05:15,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:15,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1040756971, now seen corresponding path program 1 times [2023-12-02 20:05:15,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:15,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076887717] [2023-12-02 20:05:15,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:15,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:05:15,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:15,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076887717] [2023-12-02 20:05:15,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076887717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:05:15,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:05:15,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:05:15,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091632164] [2023-12-02 20:05:15,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:05:15,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:05:15,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:15,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:05:15,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:05:15,069 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 20:05:15,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:15,084 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-12-02 20:05:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:05:15,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) Word has length 13 [2023-12-02 20:05:15,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:15,085 INFO L225 Difference]: With dead ends: 25 [2023-12-02 20:05:15,085 INFO L226 Difference]: Without dead ends: 24 [2023-12-02 20:05:15,085 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 20:05:15,086 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 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 20:05:15,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:05:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-02 20:05:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-12-02 20:05:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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 20:05:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2023-12-02 20:05:15,091 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2023-12-02 20:05:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:15,092 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2023-12-02 20:05:15,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 20:05:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2023-12-02 20:05:15,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 20:05:15,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:15,093 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1] [2023-12-02 20:05:15,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 20:05:15,093 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 20:05:15,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:15,094 INFO L85 PathProgramCache]: Analyzing trace with hash -547572799, now seen corresponding path program 2 times [2023-12-02 20:05:15,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:15,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103235427] [2023-12-02 20:05:15,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:15,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:15,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:15,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103235427] [2023-12-02 20:05:15,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103235427] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:05:15,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048815892] [2023-12-02 20:05:15,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:05:15,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:05:15,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:05:15,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:05:15,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 20:05:15,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-02 20:05:15,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:05:15,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 20:05:15,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:05:15,352 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:15,353 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:05:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:15,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048815892] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:05:15,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2096852749] [2023-12-02 20:05:15,508 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 20:05:15,509 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:05:15,509 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:05:15,509 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:05:15,509 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:05:15,655 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:05:16,018 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '573#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 20:05:16,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:05:16,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:05:16,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-12-02 20:05:16,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625634138] [2023-12-02 20:05:16,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:05:16,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 20:05:16,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:16,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 20:05:16,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2023-12-02 20:05:16,021 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:05:16,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:16,422 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2023-12-02 20:05:16,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 20:05:16,423 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-02 20:05:16,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:16,424 INFO L225 Difference]: With dead ends: 49 [2023-12-02 20:05:16,424 INFO L226 Difference]: Without dead ends: 48 [2023-12-02 20:05:16,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 20:05:16,426 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 20:05:16,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 20:05:16,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-02 20:05:16,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-02 20:05:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 47 states have internal predecessors, (48), 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 20:05:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2023-12-02 20:05:16,434 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 23 [2023-12-02 20:05:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:16,434 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2023-12-02 20:05:16,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:05:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2023-12-02 20:05:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 20:05:16,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:16,436 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1] [2023-12-02 20:05:16,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 20:05:16,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 20:05:16,637 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 20:05:16,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:16,637 INFO L85 PathProgramCache]: Analyzing trace with hash -980526691, now seen corresponding path program 3 times [2023-12-02 20:05:16,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:16,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349675338] [2023-12-02 20:05:16,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:16,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:16,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:16,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349675338] [2023-12-02 20:05:16,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349675338] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:05:16,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877087740] [2023-12-02 20:05:16,937 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 20:05:16,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:05:16,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:05:16,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:05:16,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 20:05:16,989 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 20:05:16,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:05:16,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 20:05:16,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:05:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:17,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:05:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:17,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877087740] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:05:17,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1298168144] [2023-12-02 20:05:17,793 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 20:05:17,793 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:05:17,793 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:05:17,794 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:05:17,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:05:17,951 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:05:18,534 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1040#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 20:05:18,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:05:18,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:05:18,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 41 [2023-12-02 20:05:18,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008374356] [2023-12-02 20:05:18,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:05:18,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-02 20:05:18,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:18,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-02 20:05:18,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=377, Invalid=1879, Unknown=0, NotChecked=0, Total=2256 [2023-12-02 20:05:18,539 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 42 states, 41 states have (on average 3.024390243902439) internal successors, (124), 42 states have internal predecessors, (124), 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 20:05:19,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:19,932 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2023-12-02 20:05:19,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-02 20:05:19,932 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.024390243902439) internal successors, (124), 42 states have internal predecessors, (124), 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 47 [2023-12-02 20:05:19,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:19,934 INFO L225 Difference]: With dead ends: 97 [2023-12-02 20:05:19,934 INFO L226 Difference]: Without dead ends: 96 [2023-12-02 20:05:19,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 101 SyntacticMatches, 8 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3104 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2104, Invalid=6268, Unknown=0, NotChecked=0, Total=8372 [2023-12-02 20:05:19,938 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 88 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:05:19,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 20:05:19,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-02 20:05:19,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-02 20:05:19,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 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 20:05:19,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2023-12-02 20:05:19,951 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 47 [2023-12-02 20:05:19,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:19,952 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2023-12-02 20:05:19,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.024390243902439) internal successors, (124), 42 states have internal predecessors, (124), 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 20:05:19,952 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2023-12-02 20:05:19,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 20:05:19,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:19,956 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1] [2023-12-02 20:05:19,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 20:05:20,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 20:05:20,156 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 20:05:20,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash -828954283, now seen corresponding path program 4 times [2023-12-02 20:05:20,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:20,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047142832] [2023-12-02 20:05:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:20,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:20,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:20,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047142832] [2023-12-02 20:05:20,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047142832] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:05:20,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307384399] [2023-12-02 20:05:20,910 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 20:05:20,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:05:20,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:05:20,911 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:05:20,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 20:05:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:20,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 20:05:20,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:05:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:22,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:05:23,597 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:23,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307384399] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:05:23,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [327209609] [2023-12-02 20:05:23,599 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 20:05:23,599 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:05:23,599 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:05:23,600 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:05:23,600 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:05:23,686 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:05:24,628 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2017#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 20:05:24,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:05:24,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:05:24,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 93 [2023-12-02 20:05:24,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787192745] [2023-12-02 20:05:24,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:05:24,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-12-02 20:05:24,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:24,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-12-02 20:05:24,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1516, Invalid=8384, Unknown=0, NotChecked=0, Total=9900 [2023-12-02 20:05:24,634 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 94 states, 93 states have (on average 3.010752688172043) internal successors, (280), 94 states have internal predecessors, (280), 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 20:05:30,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:05:30,257 INFO L93 Difference]: Finished difference Result 199 states and 215 transitions. [2023-12-02 20:05:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-12-02 20:05:30,258 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.010752688172043) internal successors, (280), 94 states have internal predecessors, (280), 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 95 [2023-12-02 20:05:30,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:05:30,260 INFO L225 Difference]: With dead ends: 199 [2023-12-02 20:05:30,260 INFO L226 Difference]: Without dead ends: 198 [2023-12-02 20:05:30,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 201 SyntacticMatches, 16 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15438 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=9775, Invalid=29627, Unknown=0, NotChecked=0, Total=39402 [2023-12-02 20:05:30,274 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 423 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2495 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 2671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:05:30,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 2 Invalid, 2671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2495 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 20:05:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-02 20:05:30,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2023-12-02 20:05:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.0050761421319796) internal successors, (198), 197 states have internal predecessors, (198), 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 20:05:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 198 transitions. [2023-12-02 20:05:30,292 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 198 transitions. Word has length 95 [2023-12-02 20:05:30,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:05:30,293 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 198 transitions. [2023-12-02 20:05:30,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.010752688172043) internal successors, (280), 94 states have internal predecessors, (280), 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 20:05:30,293 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 198 transitions. [2023-12-02 20:05:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-02 20:05:30,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:05:30,295 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 1, 1, 1] [2023-12-02 20:05:30,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 20:05:30,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 20:05:30,496 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 20:05:30,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:05:30,497 INFO L85 PathProgramCache]: Analyzing trace with hash -297211108, now seen corresponding path program 5 times [2023-12-02 20:05:30,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:05:30,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138331164] [2023-12-02 20:05:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:05:30,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:05:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:05:33,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:33,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:05:33,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138331164] [2023-12-02 20:05:33,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138331164] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:05:33,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891385162] [2023-12-02 20:05:33,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:05:33,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:05:33,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:05:33,426 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:05:33,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 20:05:33,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2023-12-02 20:05:33,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:05:33,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 67 conjunts are in the unsatisfiable core [2023-12-02 20:05:33,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:05:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:36,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:05:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:05:41,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891385162] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:05:41,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [820805283] [2023-12-02 20:05:41,738 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 20:05:41,738 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:05:41,738 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:05:41,738 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:05:41,739 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:05:41,811 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:05:45,497 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4056#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 20:05:45,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:05:45,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:05:45,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 195 [2023-12-02 20:05:45,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955762898] [2023-12-02 20:05:45,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:05:45,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2023-12-02 20:05:45,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:05:45,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2023-12-02 20:05:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7582, Invalid=33020, Unknown=0, NotChecked=0, Total=40602 [2023-12-02 20:05:45,507 INFO L87 Difference]: Start difference. First operand 198 states and 198 transitions. Second operand has 196 states, 195 states have (on average 3.0205128205128204) internal successors, (589), 196 states have internal predecessors, (589), 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 20:06:31,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:06:31,117 INFO L93 Difference]: Finished difference Result 397 states and 429 transitions. [2023-12-02 20:06:31,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2023-12-02 20:06:31,118 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 3.0205128205128204) internal successors, (589), 196 states have internal predecessors, (589), 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 197 [2023-12-02 20:06:31,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:06:31,121 INFO L225 Difference]: With dead ends: 397 [2023-12-02 20:06:31,121 INFO L226 Difference]: Without dead ends: 396 [2023-12-02 20:06:31,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 861 GetRequests, 422 SyntacticMatches, 33 SemanticMatches, 406 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70645 ImplicationChecksByTransitivity, 52.9s TimeCoverageRelationStatistics Valid=41688, Invalid=124368, Unknown=0, NotChecked=0, Total=166056 [2023-12-02 20:06:31,135 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1794 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11779 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 11779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:06:31,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 2 Invalid, 12552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 11779 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-02 20:06:31,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-12-02 20:06:31,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2023-12-02 20:06:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.0025316455696203) internal successors, (396), 395 states have internal predecessors, (396), 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 20:06:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 396 transitions. [2023-12-02 20:06:31,187 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 396 transitions. Word has length 197 [2023-12-02 20:06:31,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:06:31,187 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 396 transitions. [2023-12-02 20:06:31,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 3.0205128205128204) internal successors, (589), 196 states have internal predecessors, (589), 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 20:06:31,188 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 396 transitions. [2023-12-02 20:06:31,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2023-12-02 20:06:31,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:06:31,196 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 65, 65, 65, 65, 1, 1, 1] [2023-12-02 20:06:31,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 20:06:31,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 20:06:31,397 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 20:06:31,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:06:31,397 INFO L85 PathProgramCache]: Analyzing trace with hash 995880723, now seen corresponding path program 6 times [2023-12-02 20:06:31,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:06:31,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468124437] [2023-12-02 20:06:31,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:06:31,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:06:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:06:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 12675 backedges. 0 proven. 12675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:06:40,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:06:40,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468124437] [2023-12-02 20:06:40,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468124437] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:06:40,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268175148] [2023-12-02 20:06:40,669 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 20:06:40,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:06:40,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:06:40,670 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:06:40,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 20:06:40,799 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 20:06:40,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:06:40,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 133 conjunts are in the unsatisfiable core [2023-12-02 20:06:40,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:06:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 12675 backedges. 0 proven. 12675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:06:41,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:06:55,519 INFO L134 CoverageAnalysis]: Checked inductivity of 12675 backedges. 0 proven. 12675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:06:55,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268175148] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:06:55,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [270926113] [2023-12-02 20:06:55,522 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 20:06:55,522 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:06:55,522 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:06:55,522 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:06:55,523 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:06:55,596 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:07:07,051 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8031#(and (<= 1 |#StackHeapBarrier|) (<= 2147483648 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 20:07:07,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:07:07,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:07:07,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [132, 132, 132] total 267 [2023-12-02 20:07:07,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147068186] [2023-12-02 20:07:07,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:07:07,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 268 states [2023-12-02 20:07:07,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:07:07,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 268 interpolants. [2023-12-02 20:07:07,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17730, Invalid=57072, Unknown=0, NotChecked=0, Total=74802 [2023-12-02 20:07:07,064 INFO L87 Difference]: Start difference. First operand 396 states and 396 transitions. Second operand has 268 states, 267 states have (on average 3.0037453183520597) internal successors, (802), 268 states have internal predecessors, (802), 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 20:11:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:11:12,363 INFO L93 Difference]: Finished difference Result 793 states and 858 transitions. [2023-12-02 20:11:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 453 states. [2023-12-02 20:11:12,365 INFO L78 Accepts]: Start accepts. Automaton has has 268 states, 267 states have (on average 3.0037453183520597) internal successors, (802), 268 states have internal predecessors, (802), 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 395 [2023-12-02 20:11:12,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:11:12,369 INFO L225 Difference]: With dead ends: 793 [2023-12-02 20:11:12,369 INFO L226 Difference]: Without dead ends: 792 [2023-12-02 20:11:12,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1763 GetRequests, 977 SyntacticMatches, 66 SemanticMatches, 720 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210672 ImplicationChecksByTransitivity, 257.6s TimeCoverageRelationStatistics Valid=125232, Invalid=395330, Unknown=0, NotChecked=0, Total=520562 [2023-12-02 20:11:12,419 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6851 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38217 mSolverCounterSat, 2728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6851 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 40945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2728 IncrementalHoareTripleChecker+Valid, 38217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-12-02 20:11:12,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6851 Valid, 2 Invalid, 40945 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2728 Valid, 38217 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2023-12-02 20:11:12,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2023-12-02 20:11:12,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2023-12-02 20:11:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 1.0012642225031605) internal successors, (792), 791 states have internal predecessors, (792), 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 20:11:12,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 792 transitions. [2023-12-02 20:11:12,510 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 792 transitions. Word has length 395 [2023-12-02 20:11:12,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:11:12,510 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 792 transitions. [2023-12-02 20:11:12,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 268 states, 267 states have (on average 3.0037453183520597) internal successors, (802), 268 states have internal predecessors, (802), 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 20:11:12,511 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 792 transitions. [2023-12-02 20:11:12,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2023-12-02 20:11:12,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:11:12,527 INFO L195 NwaCegarLoop]: trace histogram [132, 132, 131, 131, 131, 131, 1, 1, 1] [2023-12-02 20:11:12,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 20:11:12,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 20:11:12,728 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 20:11:12,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:11:12,729 INFO L85 PathProgramCache]: Analyzing trace with hash 339128129, now seen corresponding path program 7 times [2023-12-02 20:11:12,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:11:12,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572552576] [2023-12-02 20:11:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:11:12,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:11:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:11:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 51483 backedges. 48507 proven. 0 refuted. 0 times theorem prover too weak. 2976 trivial. 0 not checked. [2023-12-02 20:11:21,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:11:21,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572552576] [2023-12-02 20:11:21,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572552576] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:11:21,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:11:21,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2023-12-02 20:11:21,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364303333] [2023-12-02 20:11:21,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:11:21,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-12-02 20:11:21,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:11:21,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-12-02 20:11:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2023-12-02 20:11:21,411 INFO L87 Difference]: Start difference. First operand 792 states and 792 transitions. Second operand has 102 states, 102 states have (on average 5.9411764705882355) internal successors, (606), 102 states have internal predecessors, (606), 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 20:11:23,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:11:23,275 INFO L93 Difference]: Finished difference Result 792 states and 792 transitions. [2023-12-02 20:11:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-12-02 20:11:23,276 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 5.9411764705882355) internal successors, (606), 102 states have internal predecessors, (606), 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 791 [2023-12-02 20:11:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:11:23,278 INFO L225 Difference]: With dead ends: 792 [2023-12-02 20:11:23,278 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 20:11:23,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2023-12-02 20:11:23,282 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2690 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:11:23,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2690 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 20:11:23,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 20:11:23,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 20:11:23,283 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 20:11:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 20:11:23,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 791 [2023-12-02 20:11:23,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:11:23,283 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 20:11:23,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 5.9411764705882355) internal successors, (606), 102 states have internal predecessors, (606), 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 20:11:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 20:11:23,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 20:11:23,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 20:11:23,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 20:11:23,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 20:11:23,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 20:11:23,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 20:11:23,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 20:11:28,472 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 1291 DAG size of output: 1009 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-02 20:11:34,246 WARN L293 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 1009 DAG size of output: 464 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-02 20:11:34,252 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-12-02 20:11:34,252 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 20:11:34,253 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-12-02 20:11:34,253 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2023-12-02 20:11:34,253 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-12-02 20:11:34,256 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 27) the Hoare annotation is: (let ((.cse11 (+ |ULTIMATE.start_main_~c~0#1| (* 2 |ULTIMATE.start_main_~i~0#1|))) (.cse13 (+ |ULTIMATE.start_main_~c~0#1| (* 5 |ULTIMATE.start_main_~i~0#1|))) (.cse3 (+ |ULTIMATE.start_main_~c~0#1| (* 3 |ULTIMATE.start_main_~i~0#1|)))) (let ((.cse2 (* |ULTIMATE.start_main_~i~0#1| 11)) (.cse5 (<= .cse3 2147483644)) (.cse4 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (.cse7 (<= .cse13 2147481315)) (.cse10 (* |ULTIMATE.start_main_~i~0#1| 13)) (.cse8 (* 14 |ULTIMATE.start_main_~i~0#1|)) (.cse0 (<= .cse11 2147483646)) (.cse9 (* 19 |ULTIMATE.start_main_~i~0#1|)) (.cse6 (<= .cse13 2147481310)) (.cse12 (= |ULTIMATE.start_main_~c~0#1| 0)) (.cse1 (<= 0 |ULTIMATE.start_main_~c~0#1|))) (or (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1128) (* 47 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 113) (<= (+ |ULTIMATE.start_main_~c~0#1| 136) (* 16 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 703) (* |ULTIMATE.start_main_~i~0#1| 37))) (and (<= (+ |ULTIMATE.start_main_~c~0#1| 210) (* |ULTIMATE.start_main_~i~0#1| 20)) .cse1 (<= (+ .cse2 |ULTIMATE.start_main_~c~0#1|) 2147483592)) (and (<= .cse3 2147481322) (<= (+ 595 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 34)) .cse1) (and (< .cse4 2147483648) .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 2016) (* |ULTIMATE.start_main_~i~0#1| 63))) (and .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 406) (* |ULTIMATE.start_main_~i~0#1| 28)) .cse5) (and .cse1 .cse6 (<= (+ |ULTIMATE.start_main_~c~0#1| 528) (* 32 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ 990 |ULTIMATE.start_main_~c~0#1|) (* 44 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 .cse7 (<= (+ |ULTIMATE.start_main_~c~0#1| 55) (* |ULTIMATE.start_main_~i~0#1| 10))) (and .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| .cse8) 2147483556) (<= (+ 153 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 17))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1540) (* |ULTIMATE.start_main_~i~0#1| 55))) (and .cse1 (<= (+ 190 |ULTIMATE.start_main_~c~0#1|) .cse9) (<= (+ .cse10 |ULTIMATE.start_main_~c~0#1|) 2147483569)) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1081) (* 46 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ 1225 |ULTIMATE.start_main_~c~0#1|) (* 49 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ 903 |ULTIMATE.start_main_~c~0#1|) (* 42 |ULTIMATE.start_main_~i~0#1|))) (and (<= (+ 2080 |ULTIMATE.start_main_~c~0#1|) (* 64 |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 100) .cse1) (and (<= (+ |ULTIMATE.start_main_~c~0#1| 1711) (* |ULTIMATE.start_main_~i~0#1| 58)) .cse0 .cse1) (and .cse1 (< .cse4 2147480876) (<= 67 |ULTIMATE.start_main_~i~0#1|)) (and (<= (+ 351 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 26)) .cse1 .cse6) (and .cse1 (<= (+ 465 |ULTIMATE.start_main_~c~0#1|) (* 30 |ULTIMATE.start_main_~i~0#1|)) .cse6) (and (<= (+ |ULTIMATE.start_main_~c~0#1| 1431) (* 53 |ULTIMATE.start_main_~i~0#1|)) .cse0 .cse1) (and .cse1 (<= (+ 66 |ULTIMATE.start_main_~c~0#1|) .cse2) .cse5) (and .cse1 .cse6 (<= (+ 21 |ULTIMATE.start_main_~c~0#1|) (* 6 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1378) (* 52 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (<= .cse11 2147481324) (<= (+ |ULTIMATE.start_main_~c~0#1| 666) (* |ULTIMATE.start_main_~i~0#1| 36))) (and (= |ULTIMATE.start_main_~i~0#1| 4) .cse1 (<= |ULTIMATE.start_main_~c~0#1| 6)) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1596) (* 56 |ULTIMATE.start_main_~i~0#1|))) (and (<= 66 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2147479227) .cse1 (<= .cse4 2147483646)) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 1770) (* 59 |ULTIMATE.start_main_~i~0#1|)) .cse1) (and (or (< 87 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147482426)) (or (< .cse4 2147481226) (< 72 |ULTIMATE.start_main_~i~0#1|)) (<= .cse4 2147483647) (or (< 78 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147481679)) (or (< 88 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147482514)) (or (< .cse4 2147482784) (< 91 |ULTIMATE.start_main_~i~0#1|)) (or (< 73 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147481299)) (or (< .cse4 2147481838) (< 80 |ULTIMATE.start_main_~i~0#1|)) (or (< 76 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147481524)) (or (< 69 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147481013)) (or (< 93 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147482969)) (or (< 82 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147482001)) (or (< 89 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147482603)) (or (< .cse4 2147481083) (< 70 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse11 2147483647) (< 99 |ULTIMATE.start_main_~i~0#1|)) .cse1 (or (< 74 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147481373)) (or (< 81 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147481919)) (or (< .cse4 2147482168) (< 84 |ULTIMATE.start_main_~i~0#1|)) (or (< 71 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147481154)) (or (< .cse4 2147482084) (< 83 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse4 2147483158) (< 95 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse4 2147480944) (< 68 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse4 2147482876) (< 92 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse4 2147481601) (< 77 |ULTIMATE.start_main_~i~0#1|)) (or (< 86 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147482339)) (or (< 98 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147483449)) (or (< .cse4 2147481448) (< 75 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse4 2147483063) (< 94 |ULTIMATE.start_main_~i~0#1|)) (<= 68 |ULTIMATE.start_main_~i~0#1|) (or (< 85 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147482253)) (or (< 79 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147481758)) (or (< 96 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147483254)) (or (< 90 |ULTIMATE.start_main_~i~0#1|) (< .cse4 2147482693)) (or (< .cse4 2147483351) (< 97 |ULTIMATE.start_main_~i~0#1|))) (and (= 5 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 10) .cse1) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1275) (* |ULTIMATE.start_main_~i~0#1| 50))) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 820) (* 40 |ULTIMATE.start_main_~i~0#1|)) .cse1) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 1891) (* |ULTIMATE.start_main_~i~0#1| 61)) .cse1) (and .cse1 .cse7 (<= (+ 91 |ULTIMATE.start_main_~c~0#1|) .cse10)) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 112) (<= (+ |ULTIMATE.start_main_~c~0#1| 105) .cse8)) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 780) (* |ULTIMATE.start_main_~i~0#1| 39)) .cse1) (and .cse1 .cse6 (<= (+ |ULTIMATE.start_main_~c~0#1| 175) .cse9) (<= 25 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 1) (= 2 |ULTIMATE.start_main_~i~0#1|) .cse1) (and .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 36) (* |ULTIMATE.start_main_~i~0#1| 8)) (<= |ULTIMATE.start_main_~i~0#1| 106)) (and (<= (+ 156 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 18)) .cse1 (<= 24 |ULTIMATE.start_main_~i~0#1|) .cse6) (and .cse12 (= |ULTIMATE.start_main_~i~0#1| 0)) (and (= 3 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= |ULTIMATE.start_main_~c~0#1| 3)) (and .cse12 (= |ULTIMATE.start_main_~i~0#1| 1)) (and (<= (+ 253 |ULTIMATE.start_main_~c~0#1|) (* 22 |ULTIMATE.start_main_~i~0#1|)) .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| (* 9 |ULTIMATE.start_main_~i~0#1|)) 2147483611))))) [2023-12-02 20:11:34,256 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 23 27) no Hoare annotation was computed. [2023-12-02 20:11:34,256 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 20:11:34,256 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 19 30) no Hoare annotation was computed. [2023-12-02 20:11:34,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-12-02 20:11:34,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-12-02 20:11:34,257 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-12-02 20:11:34,257 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-12-02 20:11:34,257 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-12-02 20:11:34,257 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-12-02 20:11:34,260 INFO L445 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1] [2023-12-02 20:11:34,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 20:11:34,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:11:34 BoogieIcfgContainer [2023-12-02 20:11:34,293 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 20:11:34,294 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 20:11:34,294 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 20:11:34,294 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 20:11:34,295 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:12" (3/4) ... [2023-12-02 20:11:34,297 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 20:11:34,303 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 20:11:34,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 20:11:34,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 20:11:34,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 20:11:34,402 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 20:11:34,402 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 20:11:34,402 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 20:11:34,403 INFO L158 Benchmark]: Toolchain (without parser) took 381995.52ms. Allocated memory was 140.5MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 94.6MB in the beginning and 626.2MB in the end (delta: -531.6MB). Peak memory consumption was 528.5MB. Max. memory is 16.1GB. [2023-12-02 20:11:34,403 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:11:34,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.57ms. Allocated memory is still 140.5MB. Free memory was 94.2MB in the beginning and 84.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 20:11:34,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.93ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 82.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:11:34,404 INFO L158 Benchmark]: Boogie Preprocessor took 18.39ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 81.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:11:34,405 INFO L158 Benchmark]: RCFGBuilder took 266.30ms. Allocated memory is still 140.5MB. Free memory was 81.6MB in the beginning and 70.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 20:11:34,405 INFO L158 Benchmark]: TraceAbstraction took 381342.09ms. Allocated memory was 140.5MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 69.9MB in the beginning and 630.4MB in the end (delta: -560.5MB). Peak memory consumption was 807.5MB. Max. memory is 16.1GB. [2023-12-02 20:11:34,405 INFO L158 Benchmark]: Witness Printer took 108.76ms. Allocated memory is still 1.2GB. Free memory was 630.4MB in the beginning and 626.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 20:11:34,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.57ms. Allocated memory is still 140.5MB. Free memory was 94.2MB in the beginning and 84.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.93ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 82.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.39ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 81.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.30ms. Allocated memory is still 140.5MB. Free memory was 81.6MB in the beginning and 70.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 381342.09ms. Allocated memory was 140.5MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 69.9MB in the beginning and 630.4MB in the end (delta: -560.5MB). Peak memory consumption was 807.5MB. Max. memory is 16.1GB. * Witness Printer took 108.76ms. Allocated memory is still 1.2GB. Free memory was 630.4MB in the beginning and 626.2MB 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 381.2s, OverallIterations: 13, TraceHistogramMax: 132, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 300.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9210 SdHoareTripleChecker+Valid, 20.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9210 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 18.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 3756 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56096 IncrementalHoareTripleChecker+Invalid, 59852 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3756 mSolverCounterUnsat, 48 mSDtfsCounter, 56096 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3483 GetRequests, 1775 SyntacticMatches, 129 SemanticMatches, 1579 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300451 ImplicationChecksByTransitivity, 325.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=792occurred in iteration=12, InterpolantAutomatonStates: 964, 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, 13 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 102 NumberOfFragments, 1038 HoareAnnotationTreeSize, 1 FomulaSimplifications, 13578 FormulaSimplificationTreeSizeReduction, 5.2s HoareSimplificationTime, 1 FomulaSimplificationsInter, 8567 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 47.9s InterpolantComputationTime, 2372 NumberOfCodeBlocks, 2372 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 3115 ConstructedInterpolants, 0 QuantifiedInterpolants, 18177 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1398 ConjunctsInSsa, 264 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 51490/101287 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: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((c + 1128) <= (47 * i))) || (((0 <= c) && (i <= 113)) && ((c + 136) <= (16 * i)))) || ((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((c + 703) <= (i * 37)))) || ((((c + 210) <= (i * 20)) && (0 <= c)) && (((i * 11) + c) <= 2147483592))) || ((((c + (3 * i)) <= 2147481322) && ((595 + c) <= (i * 34))) && (0 <= c))) || ((((c + i) < 2147483648) && (0 <= c)) && ((c + 2016) <= (i * 63)))) || (((0 <= c) && ((c + 406) <= (i * 28))) && ((c + (3 * i)) <= 2147483644))) || (((0 <= c) && ((c + (5 * i)) <= 2147481310)) && ((c + 528) <= (32 * i)))) || ((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((990 + c) <= (44 * i)))) || (((0 <= c) && ((c + (5 * i)) <= 2147481315)) && ((c + 55) <= (i * 10)))) || (((0 <= c) && ((c + (14 * i)) <= 2147483556)) && ((153 + c) <= (i * 17)))) || ((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((c + 1540) <= (i * 55)))) || (((0 <= c) && ((190 + c) <= (19 * i))) && (((i * 13) + c) <= 2147483569))) || ((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((c + 1081) <= (46 * i)))) || ((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((1225 + c) <= (49 * i)))) || ((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((903 + c) <= (42 * i)))) || ((((2080 + c) <= (64 * i)) && (i <= 100)) && (0 <= c))) || ((((c + 1711) <= (i * 58)) && ((c + (2 * i)) <= 2147483646)) && (0 <= c))) || (((0 <= c) && ((c + i) < 2147480876)) && (67 <= i))) || ((((351 + c) <= (i * 26)) && (0 <= c)) && ((c + (5 * i)) <= 2147481310))) || (((0 <= c) && ((465 + c) <= (30 * i))) && ((c + (5 * i)) <= 2147481310))) || ((((c + 1431) <= (53 * i)) && ((c + (2 * i)) <= 2147483646)) && (0 <= c))) || (((0 <= c) && ((66 + c) <= (i * 11))) && ((c + (3 * i)) <= 2147483644))) || (((0 <= c) && ((c + (5 * i)) <= 2147481310)) && ((21 + c) <= (6 * i)))) || ((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((c + 1378) <= (52 * i)))) || (((0 <= c) && ((c + (2 * i)) <= 2147481324)) && ((c + 666) <= (i * 36)))) || (((i == 4) && (0 <= c)) && (c <= 6))) || ((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((c + 1596) <= (56 * i)))) || ((((66 <= i) && (c <= 2147479227)) && (0 <= c)) && ((c + i) <= 2147483646))) || ((((c + (2 * i)) <= 2147483646) && ((c + 1770) <= (59 * i))) && (0 <= c))) || ((((((((((((((((((((((((((((((((((((87 < i) || ((c + i) < 2147482426)) && (((c + i) < 2147481226) || (72 < i))) && ((c + i) <= 2147483647)) && ((78 < i) || ((c + i) < 2147481679))) && ((88 < i) || ((c + i) < 2147482514))) && (((c + i) < 2147482784) || (91 < i))) && ((73 < i) || ((c + i) < 2147481299))) && (((c + i) < 2147481838) || (80 < i))) && ((76 < i) || ((c + i) < 2147481524))) && ((69 < i) || ((c + i) < 2147481013))) && ((93 < i) || ((c + i) < 2147482969))) && ((82 < i) || ((c + i) < 2147482001))) && ((89 < i) || ((c + i) < 2147482603))) && (((c + i) < 2147481083) || (70 < i))) && (((c + (2 * i)) < 2147483647) || (99 < i))) && (0 <= c)) && ((74 < i) || ((c + i) < 2147481373))) && ((81 < i) || ((c + i) < 2147481919))) && (((c + i) < 2147482168) || (84 < i))) && ((71 < i) || ((c + i) < 2147481154))) && (((c + i) < 2147482084) || (83 < i))) && (((c + i) < 2147483158) || (95 < i))) && (((c + i) < 2147480944) || (68 < i))) && (((c + i) < 2147482876) || (92 < i))) && (((c + i) < 2147481601) || (77 < i))) && ((86 < i) || ((c + i) < 2147482339))) && ((98 < i) || ((c + i) < 2147483449))) && (((c + i) < 2147481448) || (75 < i))) && (((c + i) < 2147483063) || (94 < i))) && (68 <= i)) && ((85 < i) || ((c + i) < 2147482253))) && ((79 < i) || ((c + i) < 2147481758))) && ((96 < i) || ((c + i) < 2147483254))) && ((90 < i) || ((c + i) < 2147482693))) && (((c + i) < 2147483351) || (97 < i)))) || (((5 == i) && (c <= 10)) && (0 <= c))) || ((((c + (2 * i)) <= 2147483646) && (0 <= c)) && ((c + 1275) <= (i * 50)))) || ((((c + (2 * i)) <= 2147483646) && ((c + 820) <= (40 * i))) && (0 <= c))) || ((((c + (2 * i)) <= 2147483646) && ((c + 1891) <= (i * 61))) && (0 <= c))) || (((0 <= c) && ((c + (5 * i)) <= 2147481315)) && ((91 + c) <= (i * 13)))) || (((0 <= c) && (i <= 112)) && ((c + 105) <= (14 * i)))) || ((((c + (2 * i)) <= 2147483646) && ((c + 780) <= (i * 39))) && (0 <= c))) || ((((0 <= c) && ((c + (5 * i)) <= 2147481310)) && ((c + 175) <= (19 * i))) && (25 <= i))) || (((c <= 1) && (2 == i)) && (0 <= c))) || (((0 <= c) && ((c + 36) <= (i * 8))) && (i <= 106))) || (((((156 + c) <= (i * 18)) && (0 <= c)) && (24 <= i)) && ((c + (5 * i)) <= 2147481310))) || ((c == 0) && (i == 0))) || (((3 == i) && (0 <= c)) && (c <= 3))) || ((c == 0) && (i == 1))) || ((((253 + c) <= (22 * i)) && (0 <= c)) && ((c + (9 * i)) <= 2147483611))) RESULT: Ultimate proved your program to be correct! [2023-12-02 20:11:34,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76abfe11-257d-4351-bcb3-36e72d1ab51f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE