./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/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_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/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_b80d0782-772f-4bb6-ad92-7c99d60d7810/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 ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:03:05,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:03:05,558 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 20:03:05,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:03:05,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:03:05,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:03:05,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:03:05,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:03:05,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:03:05,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:03:05,591 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 20:03:05,591 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 20:03:05,592 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 20:03:05,592 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 20:03:05,593 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 20:03:05,593 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 20:03:05,594 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 20:03:05,594 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 20:03:05,594 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 20:03:05,595 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 20:03:05,596 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 20:03:05,596 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 20:03:05,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:03:05,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:03:05,598 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:03:05,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:03:05,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:03:05,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:03:05,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:03:05,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:03:05,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:03:05,601 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 20:03:05,601 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:03:05,601 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:03:05,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:03:05,602 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:03:05,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:03:05,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 20:03:05,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:03:05,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:03:05,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:03:05,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:03:05,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:03:05,603 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 20:03:05,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:03:05,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:03:05,604 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:03:05,604 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 20:03:05,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 20:03:05,605 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_b80d0782-772f-4bb6-ad92-7c99d60d7810/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93 [2023-12-02 20:03:05,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:03:05,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:03:05,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:03:05,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:03:05,827 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:03:05,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2023-12-02 20:03:08,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:03:08,830 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:03:08,831 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2023-12-02 20:03:08,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/data/453ec2fd4/9e7f2880d5944c6e9f3d9412bac6fa16/FLAG216dd8927 [2023-12-02 20:03:08,858 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/data/453ec2fd4/9e7f2880d5944c6e9f3d9412bac6fa16 [2023-12-02 20:03:08,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:03:08,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:03:08,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:03:08,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:03:08,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:03:08,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:03:08" (1/1) ... [2023-12-02 20:03:08,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cafe217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:08, skipping insertion in model container [2023-12-02 20:03:08,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:03:08" (1/1) ... [2023-12-02 20:03:08,914 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:03:09,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:03:09,182 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:03:09,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:03:09,245 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:03:09,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09 WrapperNode [2023-12-02 20:03:09,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:03:09,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:03:09,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:03:09,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:03:09,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,289 INFO L138 Inliner]: procedures = 116, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-12-02 20:03:09,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:03:09,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:03:09,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:03:09,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:03:09,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:03:09,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:03:09,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:03:09,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:03:09,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (1/1) ... [2023-12-02 20:03:09,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:03:09,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:09,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:03:09,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:03:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 20:03:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 20:03:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 20:03:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:03:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:03:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:03:09,468 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:03:09,469 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:03:09,604 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:03:09,648 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:03:09,648 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 20:03:09,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:03:09 BoogieIcfgContainer [2023-12-02 20:03:09,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:03:09,653 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 20:03:09,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 20:03:09,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 20:03:09,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:03:08" (1/3) ... [2023-12-02 20:03:09,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cf421d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:03:09, skipping insertion in model container [2023-12-02 20:03:09,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:03:09" (2/3) ... [2023-12-02 20:03:09,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cf421d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:03:09, skipping insertion in model container [2023-12-02 20:03:09,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:03:09" (3/3) ... [2023-12-02 20:03:09,659 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca-1.i [2023-12-02 20:03:09,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 20:03:09,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-12-02 20:03:09,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 20:03:09,728 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;@661565d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:03:09,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-12-02 20:03:09,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 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 20:03:09,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 20:03:09,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:09,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 20:03:09,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:09,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:09,741 INFO L85 PathProgramCache]: Analyzing trace with hash 120982, now seen corresponding path program 1 times [2023-12-02 20:03:09,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:09,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530044490] [2023-12-02 20:03:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:09,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:09,987 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 20:03:09,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:09,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530044490] [2023-12-02 20:03:09,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530044490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:09,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:09,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:03:09,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755382916] [2023-12-02 20:03:09,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:09,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:03:09,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:10,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:03:10,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:03:10,024 INFO L87 Difference]: Start difference. First operand has 36 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:10,081 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2023-12-02 20:03:10,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:03:10,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-12-02 20:03:10,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:10,089 INFO L225 Difference]: With dead ends: 71 [2023-12-02 20:03:10,090 INFO L226 Difference]: Without dead ends: 38 [2023-12-02 20:03:10,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:03:10,096 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:10,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 98 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:10,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-12-02 20:03:10,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-12-02 20:03:10,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.75) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 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 20:03:10,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-12-02 20:03:10,123 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 3 [2023-12-02 20:03:10,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:10,123 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-12-02 20:03:10,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:10,124 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-12-02 20:03:10,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 20:03:10,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:10,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 20:03:10,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 20:03:10,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:10,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:10,126 INFO L85 PathProgramCache]: Analyzing trace with hash 3755751, now seen corresponding path program 1 times [2023-12-02 20:03:10,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:10,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862263517] [2023-12-02 20:03:10,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:10,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:10,178 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 20:03:10,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:10,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862263517] [2023-12-02 20:03:10,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862263517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:10,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:10,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:03:10,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667472788] [2023-12-02 20:03:10,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:10,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:03:10,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:10,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:03:10,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:03:10,182 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. 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 20:03:10,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:10,203 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2023-12-02 20:03:10,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:03:10,204 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 20:03:10,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:10,205 INFO L225 Difference]: With dead ends: 38 [2023-12-02 20:03:10,205 INFO L226 Difference]: Without dead ends: 37 [2023-12-02 20:03:10,206 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 20:03:10,207 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:10,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 32 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:10,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-02 20:03:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-12-02 20:03:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2023-12-02 20:03:10,214 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 4 [2023-12-02 20:03:10,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:10,214 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2023-12-02 20:03:10,215 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 20:03:10,215 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2023-12-02 20:03:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 20:03:10,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:10,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 20:03:10,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 20:03:10,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:10,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash 116428353, now seen corresponding path program 1 times [2023-12-02 20:03:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:10,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714902247] [2023-12-02 20:03:10,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:10,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:10,320 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 20:03:10,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:10,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714902247] [2023-12-02 20:03:10,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714902247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:10,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:10,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:03:10,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577838121] [2023-12-02 20:03:10,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:10,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:03:10,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:10,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:03:10,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:03:10,323 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) 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 20:03:10,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:10,354 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2023-12-02 20:03:10,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:03:10,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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 20:03:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:10,356 INFO L225 Difference]: With dead ends: 66 [2023-12-02 20:03:10,356 INFO L226 Difference]: Without dead ends: 37 [2023-12-02 20:03:10,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:03:10,358 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:10,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 93 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:10,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-02 20:03:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-12-02 20:03:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 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 20:03:10,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2023-12-02 20:03:10,364 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 5 [2023-12-02 20:03:10,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:10,365 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2023-12-02 20:03:10,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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 20:03:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2023-12-02 20:03:10,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 20:03:10,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:10,366 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-12-02 20:03:10,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 20:03:10,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:10,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:10,367 INFO L85 PathProgramCache]: Analyzing trace with hash -690737861, now seen corresponding path program 1 times [2023-12-02 20:03:10,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:10,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076138689] [2023-12-02 20:03:10,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:10,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:10,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:03:10,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:10,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076138689] [2023-12-02 20:03:10,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076138689] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:10,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176669211] [2023-12-02 20:03:10,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:10,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:10,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:10,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:10,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 20:03:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:10,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 20:03:10,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:10,584 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 20:03:10,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:03:10,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176669211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:10,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:03:10,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-12-02 20:03:10,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030518331] [2023-12-02 20:03:10,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:10,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 20:03:10,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:10,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 20:03:10,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 20:03:10,587 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 20:03:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:10,625 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2023-12-02 20:03:10,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:03:10,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 20:03:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:10,627 INFO L225 Difference]: With dead ends: 37 [2023-12-02 20:03:10,627 INFO L226 Difference]: Without dead ends: 36 [2023-12-02 20:03:10,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 20:03:10,629 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:10,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 120 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:10,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-02 20:03:10,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-12-02 20:03:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.625) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 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 20:03:10,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2023-12-02 20:03:10,634 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 6 [2023-12-02 20:03:10,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:10,634 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2023-12-02 20:03:10,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 20:03:10,635 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2023-12-02 20:03:10,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 20:03:10,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:10,635 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-12-02 20:03:10,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 20:03:10,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:10,836 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:10,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:10,837 INFO L85 PathProgramCache]: Analyzing trace with hash 61962842, now seen corresponding path program 1 times [2023-12-02 20:03:10,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:10,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410933930] [2023-12-02 20:03:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:10,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:10,919 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 20:03:10,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:10,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410933930] [2023-12-02 20:03:10,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410933930] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:10,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62562883] [2023-12-02 20:03:10,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:10,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:10,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:10,921 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:10,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 20:03:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:10,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 20:03:10,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:11,014 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 20:03:11,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:03:11,056 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 20:03:11,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62562883] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:03:11,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [459568899] [2023-12-02 20:03:11,074 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2023-12-02 20:03:11,075 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:03:11,078 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:03:11,083 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:03:11,083 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:03:11,903 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:03:12,110 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '524#(and (= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_main_#t~post10#1|) (<= 1 |#StackHeapBarrier|) (<= (select (select |#memory_int| |ULTIMATE.start_main_~numbers~0#1.base|) (* |ULTIMATE.start_main_~i~1#1| 4)) 2147483647) (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (exists ((|v_#memory_int_19| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_19| |ULTIMATE.start_main_~numbers~0#1.base| (store (select |v_#memory_int_19| |ULTIMATE.start_main_~numbers~0#1.base|) (* |ULTIMATE.start_main_~i~1#1| 4) (select (select |#memory_int| |ULTIMATE.start_main_~numbers~0#1.base|) (* |ULTIMATE.start_main_~i~1#1| 4)))))) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_main_~numbers~0#1.base|) (* |ULTIMATE.start_main_~i~1#1| 4)) 2147483648)) (= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= (+ |ULTIMATE.start_main_~i~1#1| 1) |ULTIMATE.start_main_~array_size~0#1|) (<= 2147483647 |ULTIMATE.start_main_#t~post10#1|))' at error location [2023-12-02 20:03:12,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:03:12,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:03:12,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-12-02 20:03:12,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539775906] [2023-12-02 20:03:12,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:03:12,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 20:03:12,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:12,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 20:03:12,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-12-02 20:03:12,113 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:12,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:12,198 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2023-12-02 20:03:12,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:03:12,199 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 20:03:12,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:12,201 INFO L225 Difference]: With dead ends: 46 [2023-12-02 20:03:12,201 INFO L226 Difference]: Without dead ends: 45 [2023-12-02 20:03:12,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2023-12-02 20:03:12,202 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 14 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:12,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 154 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:12,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-02 20:03:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-12-02 20:03:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 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 20:03:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2023-12-02 20:03:12,210 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 7 [2023-12-02 20:03:12,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:12,210 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2023-12-02 20:03:12,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:12,210 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2023-12-02 20:03:12,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 20:03:12,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:12,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:12,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 20:03:12,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:12,417 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:12,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:12,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1921011110, now seen corresponding path program 1 times [2023-12-02 20:03:12,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:12,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460218900] [2023-12-02 20:03:12,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:12,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:03:12,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:12,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460218900] [2023-12-02 20:03:12,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460218900] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:12,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59857917] [2023-12-02 20:03:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:12,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:12,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:12,497 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:12,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 20:03:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:12,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 20:03:12,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:03:12,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:03:12,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59857917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:12,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:03:12,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2023-12-02 20:03:12,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801172887] [2023-12-02 20:03:12,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:12,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:03:12,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:12,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:03:12,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 20:03:12,590 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:12,623 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2023-12-02 20:03:12,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:03:12,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 20:03:12,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:12,625 INFO L225 Difference]: With dead ends: 73 [2023-12-02 20:03:12,625 INFO L226 Difference]: Without dead ends: 72 [2023-12-02 20:03:12,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 20:03:12,626 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 29 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:12,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 76 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:12,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-02 20:03:12,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 59. [2023-12-02 20:03:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.5957446808510638) internal successors, (75), 58 states have internal predecessors, (75), 0 states have call successors, (0), 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 20:03:12,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2023-12-02 20:03:12,634 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 8 [2023-12-02 20:03:12,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:12,634 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2023-12-02 20:03:12,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:12,635 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2023-12-02 20:03:12,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 20:03:12,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:12,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:12,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 20:03:12,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:12,838 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:12,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:12,839 INFO L85 PathProgramCache]: Analyzing trace with hash -744258104, now seen corresponding path program 1 times [2023-12-02 20:03:12,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:12,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886477799] [2023-12-02 20:03:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:12,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:03:12,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:12,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886477799] [2023-12-02 20:03:12,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886477799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:12,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:12,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:03:12,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736696254] [2023-12-02 20:03:12,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:12,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:03:12,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:12,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:03:12,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:03:12,872 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:12,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:12,919 INFO L93 Difference]: Finished difference Result 100 states and 128 transitions. [2023-12-02 20:03:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:03:12,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-02 20:03:12,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:12,920 INFO L225 Difference]: With dead ends: 100 [2023-12-02 20:03:12,921 INFO L226 Difference]: Without dead ends: 94 [2023-12-02 20:03:12,921 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 20:03:12,922 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:12,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 39 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:12,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-02 20:03:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2023-12-02 20:03:12,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 67 states have (on average 1.492537313432836) internal successors, (100), 78 states have internal predecessors, (100), 0 states have call successors, (0), 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 20:03:12,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 100 transitions. [2023-12-02 20:03:12,930 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 100 transitions. Word has length 10 [2023-12-02 20:03:12,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:12,931 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 100 transitions. [2023-12-02 20:03:12,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:12,931 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 100 transitions. [2023-12-02 20:03:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 20:03:12,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:12,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:12,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 20:03:12,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:12,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1597165785, now seen corresponding path program 1 times [2023-12-02 20:03:12,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:12,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72074180] [2023-12-02 20:03:12,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:12,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:12,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:03:12,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:12,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72074180] [2023-12-02 20:03:12,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72074180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:12,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:12,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 20:03:12,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129590543] [2023-12-02 20:03:12,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:12,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:03:12,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:12,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:03:12,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:03:12,969 INFO L87 Difference]: Start difference. First operand 79 states and 100 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:12,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:12,998 INFO L93 Difference]: Finished difference Result 79 states and 100 transitions. [2023-12-02 20:03:12,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:03:12,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 20:03:12,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:13,000 INFO L225 Difference]: With dead ends: 79 [2023-12-02 20:03:13,000 INFO L226 Difference]: Without dead ends: 78 [2023-12-02 20:03:13,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:03:13,001 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 26 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 47 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 20:03:13,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 47 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:13,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-02 20:03:13,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-02 20:03:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 77 states have internal predecessors, (99), 0 states have call successors, (0), 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 20:03:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 99 transitions. [2023-12-02 20:03:13,009 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 99 transitions. Word has length 11 [2023-12-02 20:03:13,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:13,009 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 99 transitions. [2023-12-02 20:03:13,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:13,009 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2023-12-02 20:03:13,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 20:03:13,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:13,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:13,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 20:03:13,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:13,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2027468325, now seen corresponding path program 1 times [2023-12-02 20:03:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:13,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761757936] [2023-12-02 20:03:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:13,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:13,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:03:13,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:13,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761757936] [2023-12-02 20:03:13,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761757936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:13,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:13,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 20:03:13,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457274025] [2023-12-02 20:03:13,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:13,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:03:13,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:13,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:03:13,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:03:13,047 INFO L87 Difference]: Start difference. First operand 78 states and 99 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:13,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:13,084 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2023-12-02 20:03:13,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:03:13,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-02 20:03:13,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:13,085 INFO L225 Difference]: With dead ends: 90 [2023-12-02 20:03:13,085 INFO L226 Difference]: Without dead ends: 89 [2023-12-02 20:03:13,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:03:13,086 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:13,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 71 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:13,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-02 20:03:13,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 81. [2023-12-02 20:03:13,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 70 states have (on average 1.457142857142857) internal successors, (102), 80 states have internal predecessors, (102), 0 states have call successors, (0), 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 20:03:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2023-12-02 20:03:13,094 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 12 [2023-12-02 20:03:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:13,094 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2023-12-02 20:03:13,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2023-12-02 20:03:13,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 20:03:13,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:13,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:13,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 20:03:13,096 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:13,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:13,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1484676937, now seen corresponding path program 1 times [2023-12-02 20:03:13,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:13,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066508038] [2023-12-02 20:03:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:13,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:13,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:03:13,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:13,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066508038] [2023-12-02 20:03:13,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066508038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:13,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:13,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 20:03:13,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389664237] [2023-12-02 20:03:13,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:13,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:03:13,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:13,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:03:13,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:03:13,141 INFO L87 Difference]: Start difference. First operand 81 states and 102 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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 20:03:13,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:13,200 INFO L93 Difference]: Finished difference Result 98 states and 120 transitions. [2023-12-02 20:03:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:03:13,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) Word has length 14 [2023-12-02 20:03:13,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:13,201 INFO L225 Difference]: With dead ends: 98 [2023-12-02 20:03:13,201 INFO L226 Difference]: Without dead ends: 96 [2023-12-02 20:03:13,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:03:13,202 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:13,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 54 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:13,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-02 20:03:13,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2023-12-02 20:03:13,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 86 states have internal predecessors, (108), 0 states have call successors, (0), 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 20:03:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 108 transitions. [2023-12-02 20:03:13,210 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 108 transitions. Word has length 14 [2023-12-02 20:03:13,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:13,210 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 108 transitions. [2023-12-02 20:03:13,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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 20:03:13,210 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 108 transitions. [2023-12-02 20:03:13,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 20:03:13,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:13,211 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:13,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 20:03:13,212 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:13,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:13,212 INFO L85 PathProgramCache]: Analyzing trace with hash 183851134, now seen corresponding path program 1 times [2023-12-02 20:03:13,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:13,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833267904] [2023-12-02 20:03:13,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:13,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:03:13,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:13,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833267904] [2023-12-02 20:03:13,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833267904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:13,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:13,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 20:03:13,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090493465] [2023-12-02 20:03:13,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:13,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:03:13,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:13,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:03:13,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:03:13,254 INFO L87 Difference]: Start difference. First operand 87 states and 108 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 20:03:13,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:13,300 INFO L93 Difference]: Finished difference Result 131 states and 156 transitions. [2023-12-02 20:03:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:03:13,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) Word has length 15 [2023-12-02 20:03:13,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:13,301 INFO L225 Difference]: With dead ends: 131 [2023-12-02 20:03:13,301 INFO L226 Difference]: Without dead ends: 88 [2023-12-02 20:03:13,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:03:13,302 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:13,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 29 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:13,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-02 20:03:13,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2023-12-02 20:03:13,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 76 states have (on average 1.394736842105263) internal successors, (106), 86 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2023-12-02 20:03:13,308 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 15 [2023-12-02 20:03:13,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:13,309 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2023-12-02 20:03:13,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 20:03:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2023-12-02 20:03:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 20:03:13,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:13,310 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1] [2023-12-02 20:03:13,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 20:03:13,310 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:13,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:13,311 INFO L85 PathProgramCache]: Analyzing trace with hash -730294625, now seen corresponding path program 2 times [2023-12-02 20:03:13,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:13,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91074172] [2023-12-02 20:03:13,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:13,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:03:13,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:13,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91074172] [2023-12-02 20:03:13,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91074172] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:13,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861236596] [2023-12-02 20:03:13,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:03:13,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:13,456 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:13,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 20:03:13,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 20:03:13,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:03:13,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 20:03:13,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 20:03:13,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:03:13,705 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 20:03:13,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861236596] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:03:13,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1638019673] [2023-12-02 20:03:13,707 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2023-12-02 20:03:13,707 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:03:13,708 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:03:13,708 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:03:13,708 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:03:14,355 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:03:14,817 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1974#(and (= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_main_#t~post10#1|) (<= 1 |#StackHeapBarrier|) (<= (select (select |#memory_int| |ULTIMATE.start_main_~numbers~0#1.base|) (* |ULTIMATE.start_main_~i~1#1| 4)) 2147483647) (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (exists ((|v_#memory_int_28| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_28| |ULTIMATE.start_main_~numbers~0#1.base| (store (select |v_#memory_int_28| |ULTIMATE.start_main_~numbers~0#1.base|) (* |ULTIMATE.start_main_~i~1#1| 4) (select (select |#memory_int| |ULTIMATE.start_main_~numbers~0#1.base|) (* |ULTIMATE.start_main_~i~1#1| 4)))))) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_main_~numbers~0#1.base|) (* |ULTIMATE.start_main_~i~1#1| 4)) 2147483648)) (= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= (+ |ULTIMATE.start_main_~i~1#1| 1) |ULTIMATE.start_main_~array_size~0#1|) (<= 2147483647 |ULTIMATE.start_main_#t~post10#1|))' at error location [2023-12-02 20:03:14,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:03:14,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:03:14,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 14 [2023-12-02 20:03:14,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161309252] [2023-12-02 20:03:14,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:03:14,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 20:03:14,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:14,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 20:03:14,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2023-12-02 20:03:14,819 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:15,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:15,085 INFO L93 Difference]: Finished difference Result 90 states and 111 transitions. [2023-12-02 20:03:15,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:03:15,086 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-02 20:03:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:15,087 INFO L225 Difference]: With dead ends: 90 [2023-12-02 20:03:15,087 INFO L226 Difference]: Without dead ends: 89 [2023-12-02 20:03:15,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2023-12-02 20:03:15,088 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 50 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:15,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 174 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:15,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-02 20:03:15,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2023-12-02 20:03:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.4) internal successors, (91), 74 states have internal predecessors, (91), 0 states have call successors, (0), 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 20:03:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 91 transitions. [2023-12-02 20:03:15,094 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 91 transitions. Word has length 16 [2023-12-02 20:03:15,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:15,094 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 91 transitions. [2023-12-02 20:03:15,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:15,094 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 91 transitions. [2023-12-02 20:03:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 20:03:15,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:15,095 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:15,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 20:03:15,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 20:03:15,300 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:15,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:15,300 INFO L85 PathProgramCache]: Analyzing trace with hash 644567537, now seen corresponding path program 1 times [2023-12-02 20:03:15,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:15,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535393761] [2023-12-02 20:03:15,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:15,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:03:15,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535393761] [2023-12-02 20:03:15,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535393761] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022444115] [2023-12-02 20:03:15,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:15,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:15,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:15,360 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:15,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 20:03:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:15,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 20:03:15,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 20:03:15,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:03:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 20:03:15,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022444115] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:03:15,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [244434601] [2023-12-02 20:03:15,512 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 20:03:15,512 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:03:15,513 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:03:15,513 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:03:15,513 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:03:17,739 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:03:18,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [244434601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:18,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:03:18,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 5, 5] total 20 [2023-12-02 20:03:18,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758229971] [2023-12-02 20:03:18,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:18,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 20:03:18,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:18,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 20:03:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-12-02 20:03:18,598 INFO L87 Difference]: Start difference. First operand 75 states and 91 transitions. Second operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 20:03:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:19,297 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2023-12-02 20:03:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:03:19,297 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-02 20:03:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:19,298 INFO L225 Difference]: With dead ends: 90 [2023-12-02 20:03:19,298 INFO L226 Difference]: Without dead ends: 84 [2023-12-02 20:03:19,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2023-12-02 20:03:19,299 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 43 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:19,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 60 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 20:03:19,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-02 20:03:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 75. [2023-12-02 20:03:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 0 states have call successors, (0), 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 20:03:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2023-12-02 20:03:19,305 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 19 [2023-12-02 20:03:19,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:19,305 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2023-12-02 20:03:19,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 20:03:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2023-12-02 20:03:19,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 20:03:19,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:19,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:19,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 20:03:19,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:19,510 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:19,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:19,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2076510614, now seen corresponding path program 1 times [2023-12-02 20:03:19,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:19,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945482421] [2023-12-02 20:03:19,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:19,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 20:03:19,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:19,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945482421] [2023-12-02 20:03:19,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945482421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:19,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:19,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:03:19,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870352222] [2023-12-02 20:03:19,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:19,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:03:19,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:19,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:03:19,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:03:19,541 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:19,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:19,568 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2023-12-02 20:03:19,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:03:19,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-02 20:03:19,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:19,571 INFO L225 Difference]: With dead ends: 76 [2023-12-02 20:03:19,571 INFO L226 Difference]: Without dead ends: 74 [2023-12-02 20:03:19,572 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 20:03:19,572 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:19,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 27 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-12-02 20:03:19,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2023-12-02 20:03:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 72 states have internal predecessors, (82), 0 states have call successors, (0), 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 20:03:19,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2023-12-02 20:03:19,578 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 23 [2023-12-02 20:03:19,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:19,579 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2023-12-02 20:03:19,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:19,579 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2023-12-02 20:03:19,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 20:03:19,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:19,580 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:19,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 20:03:19,580 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:19,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:19,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1088176651, now seen corresponding path program 1 times [2023-12-02 20:03:19,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:19,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071645440] [2023-12-02 20:03:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:19,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 20:03:19,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:19,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071645440] [2023-12-02 20:03:19,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071645440] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:19,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899536410] [2023-12-02 20:03:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:19,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:19,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:19,675 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:19,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 20:03:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:19,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 20:03:19,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:19,770 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 20:03:19,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:03:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 20:03:19,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899536410] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:03:19,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [303896548] [2023-12-02 20:03:19,804 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 20:03:19,804 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:03:19,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:03:19,804 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:03:19,804 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:03:24,697 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:03:25,792 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2823#(and (<= 1 |ULTIMATE.start_sort_~pass~0#1|) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= |ULTIMATE.start_sort_~i~0#1| 2147483647) (<= 2 |ULTIMATE.start_sort_#in~n#1|) (<= (+ |ULTIMATE.start_sort_~pass~0#1| 2147483648) |ULTIMATE.start_sort_~n#1|) (<= 0 |ULTIMATE.start_sort_~i~0#1|))' at error location [2023-12-02 20:03:25,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:03:25,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:03:25,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-12-02 20:03:25,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679248710] [2023-12-02 20:03:25,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:03:25,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 20:03:25,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:25,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 20:03:25,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2023-12-02 20:03:25,794 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 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 20:03:25,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:25,840 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2023-12-02 20:03:25,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:03:25,841 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 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 24 [2023-12-02 20:03:25,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:25,842 INFO L225 Difference]: With dead ends: 146 [2023-12-02 20:03:25,842 INFO L226 Difference]: Without dead ends: 78 [2023-12-02 20:03:25,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 48 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2023-12-02 20:03:25,844 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:25,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 176 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-02 20:03:25,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2023-12-02 20:03:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 68 states have (on average 1.25) internal successors, (85), 75 states have internal predecessors, (85), 0 states have call successors, (0), 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 20:03:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2023-12-02 20:03:25,850 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 24 [2023-12-02 20:03:25,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:25,850 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2023-12-02 20:03:25,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 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 20:03:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2023-12-02 20:03:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 20:03:25,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:25,851 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:25,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 20:03:26,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:26,057 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:26,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:26,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1426010736, now seen corresponding path program 2 times [2023-12-02 20:03:26,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:26,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816977385] [2023-12-02 20:03:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:26,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 20:03:26,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:26,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816977385] [2023-12-02 20:03:26,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816977385] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:26,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113465295] [2023-12-02 20:03:26,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:03:26,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:26,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:26,175 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:26,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 20:03:26,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 20:03:26,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:03:26,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 20:03:26,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:26,278 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 20:03:26,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:03:26,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113465295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:26,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:03:26,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2023-12-02 20:03:26,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778499689] [2023-12-02 20:03:26,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:26,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 20:03:26,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:26,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 20:03:26,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-02 20:03:26,280 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:26,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:26,336 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2023-12-02 20:03:26,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:03:26,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-02 20:03:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:26,337 INFO L225 Difference]: With dead ends: 77 [2023-12-02 20:03:26,338 INFO L226 Difference]: Without dead ends: 76 [2023-12-02 20:03:26,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-12-02 20:03:26,338 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 40 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:26,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 81 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:26,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-02 20:03:26,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2023-12-02 20:03:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 74 states have internal predecessors, (83), 0 states have call successors, (0), 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 20:03:26,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2023-12-02 20:03:26,343 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 27 [2023-12-02 20:03:26,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:26,344 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2023-12-02 20:03:26,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:26,344 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2023-12-02 20:03:26,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 20:03:26,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:26,345 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:26,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 20:03:26,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 20:03:26,549 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:26,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:26,550 INFO L85 PathProgramCache]: Analyzing trace with hash 299224389, now seen corresponding path program 1 times [2023-12-02 20:03:26,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:26,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52061294] [2023-12-02 20:03:26,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:26,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:26,594 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 20:03:26,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:26,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52061294] [2023-12-02 20:03:26,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52061294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:26,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:03:26,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 20:03:26,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745560512] [2023-12-02 20:03:26,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:26,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:03:26,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:26,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:03:26,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:03:26,596 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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 20:03:26,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:26,634 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2023-12-02 20:03:26,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:03:26,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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) Word has length 31 [2023-12-02 20:03:26,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:26,636 INFO L225 Difference]: With dead ends: 75 [2023-12-02 20:03:26,636 INFO L226 Difference]: Without dead ends: 74 [2023-12-02 20:03:26,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:03:26,637 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:26,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 34 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:26,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-12-02 20:03:26,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 63. [2023-12-02 20:03:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 62 states have internal predecessors, (69), 0 states have call successors, (0), 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 20:03:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2023-12-02 20:03:26,643 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 31 [2023-12-02 20:03:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:26,643 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2023-12-02 20:03:26,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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 20:03:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2023-12-02 20:03:26,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 20:03:26,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:26,645 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:26,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 20:03:26,645 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:26,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:26,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1297978649, now seen corresponding path program 1 times [2023-12-02 20:03:26,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:26,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672710284] [2023-12-02 20:03:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:26,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 20:03:26,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:26,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672710284] [2023-12-02 20:03:26,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672710284] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:26,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692631523] [2023-12-02 20:03:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:26,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:26,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:26,711 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:26,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 20:03:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:26,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 20:03:26,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:26,911 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 20:03:26,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:03:27,000 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 20:03:27,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692631523] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:03:27,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [609579958] [2023-12-02 20:03:27,002 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 20:03:27,003 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:03:27,003 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:03:27,003 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:03:27,003 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:03:31,707 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:03:32,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [609579958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:32,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:03:32,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 9, 9] total 29 [2023-12-02 20:03:32,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417673257] [2023-12-02 20:03:32,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:32,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 20:03:32,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:32,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 20:03:32,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2023-12-02 20:03:32,922 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:33,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:33,250 INFO L93 Difference]: Finished difference Result 123 states and 134 transitions. [2023-12-02 20:03:33,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 20:03:33,250 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-12-02 20:03:33,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:33,251 INFO L225 Difference]: With dead ends: 123 [2023-12-02 20:03:33,251 INFO L226 Difference]: Without dead ends: 118 [2023-12-02 20:03:33,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 79 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930 [2023-12-02 20:03:33,253 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:33,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 21 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 20:03:33,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-02 20:03:33,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 97. [2023-12-02 20:03:33,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.1978021978021978) internal successors, (109), 96 states have internal predecessors, (109), 0 states have call successors, (0), 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 20:03:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2023-12-02 20:03:33,259 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 38 [2023-12-02 20:03:33,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:33,260 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2023-12-02 20:03:33,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2023-12-02 20:03:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 20:03:33,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:33,261 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-12-02 20:03:33,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 20:03:33,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-02 20:03:33,466 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:33,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:33,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1816998012, now seen corresponding path program 1 times [2023-12-02 20:03:33,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:33,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279342399] [2023-12-02 20:03:33,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:33,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:33,622 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 20:03:33,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:33,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279342399] [2023-12-02 20:03:33,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279342399] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:33,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418443698] [2023-12-02 20:03:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:33,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:33,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:33,625 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:33,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 20:03:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:33,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 20:03:33,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:33,798 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 20:03:33,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:03:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 20:03:33,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418443698] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:03:33,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [120573451] [2023-12-02 20:03:33,854 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 20:03:33,854 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:03:33,854 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:03:33,854 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:03:33,855 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:03:38,466 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:03:39,687 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4263#(and (<= |ULTIMATE.start_sort_~n#1| (+ |ULTIMATE.start_sort_~i~0#1| |ULTIMATE.start_sort_~pass~0#1|)) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= 2147483647 |ULTIMATE.start_sort_#t~post2#1|) (<= |ULTIMATE.start_sort_~i~0#1| 2147483647) (<= 2 |ULTIMATE.start_sort_#in~n#1|) (= |ULTIMATE.start_sort_#t~post2#1| |ULTIMATE.start_sort_~pass~0#1|) (<= 2 |ULTIMATE.start_sort_~n#1|) (<= |ULTIMATE.start_sort_~pass~0#1| (+ |ULTIMATE.start_sort_~n#1| 2147483648)) (<= 0 |ULTIMATE.start_sort_~i~0#1|))' at error location [2023-12-02 20:03:39,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:03:39,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:03:39,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2023-12-02 20:03:39,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515688665] [2023-12-02 20:03:39,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:03:39,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 20:03:39,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:39,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 20:03:39,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2023-12-02 20:03:39,689 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:39,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:39,798 INFO L93 Difference]: Finished difference Result 193 states and 217 transitions. [2023-12-02 20:03:39,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:03:39,798 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-12-02 20:03:39,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:39,799 INFO L225 Difference]: With dead ends: 193 [2023-12-02 20:03:39,799 INFO L226 Difference]: Without dead ends: 102 [2023-12-02 20:03:39,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 87 SyntacticMatches, 13 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=121, Invalid=871, Unknown=0, NotChecked=0, Total=992 [2023-12-02 20:03:39,801 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:39,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 173 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 20:03:39,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-02 20:03:39,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2023-12-02 20:03:39,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 94 states have (on average 1.1914893617021276) internal successors, (112), 99 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2023-12-02 20:03:39,810 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 40 [2023-12-02 20:03:39,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:39,811 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2023-12-02 20:03:39,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2023-12-02 20:03:39,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 20:03:39,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:39,811 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-12-02 20:03:39,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 20:03:40,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:40,012 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:40,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:40,013 INFO L85 PathProgramCache]: Analyzing trace with hash -842797569, now seen corresponding path program 2 times [2023-12-02 20:03:40,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:40,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25418797] [2023-12-02 20:03:40,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:40,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 20:03:40,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:40,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25418797] [2023-12-02 20:03:40,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25418797] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:40,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484229528] [2023-12-02 20:03:40,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:03:40,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:40,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:40,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:40,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 20:03:40,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 20:03:40,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:03:40,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 20:03:40,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:40,416 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 20:03:40,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:03:40,513 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 20:03:40,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484229528] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:03:40,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [851601921] [2023-12-02 20:03:40,515 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 20:03:40,515 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:03:40,516 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:03:40,516 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:03:40,516 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:03:44,942 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:03:46,423 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4888#(and (<= |ULTIMATE.start_sort_~n#1| (+ |ULTIMATE.start_sort_~i~0#1| |ULTIMATE.start_sort_~pass~0#1|)) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= 2147483647 |ULTIMATE.start_sort_#t~post2#1|) (<= |ULTIMATE.start_sort_~i~0#1| 2147483647) (<= 2 |ULTIMATE.start_sort_#in~n#1|) (= |ULTIMATE.start_sort_#t~post2#1| |ULTIMATE.start_sort_~pass~0#1|) (<= 2 |ULTIMATE.start_sort_~n#1|) (<= |ULTIMATE.start_sort_~pass~0#1| (+ |ULTIMATE.start_sort_~n#1| 2147483648)) (<= 0 |ULTIMATE.start_sort_~i~0#1|))' at error location [2023-12-02 20:03:46,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 20:03:46,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:03:46,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 19 [2023-12-02 20:03:46,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364855172] [2023-12-02 20:03:46,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:03:46,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 20:03:46,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:46,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 20:03:46,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1015, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 20:03:46,426 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 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 20:03:46,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:46,901 INFO L93 Difference]: Finished difference Result 181 states and 204 transitions. [2023-12-02 20:03:46,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:03:46,902 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 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 43 [2023-12-02 20:03:46,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:46,903 INFO L225 Difference]: With dead ends: 181 [2023-12-02 20:03:46,903 INFO L226 Difference]: Without dead ends: 118 [2023-12-02 20:03:46,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 99 SyntacticMatches, 7 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=281, Invalid=2169, Unknown=0, NotChecked=0, Total=2450 [2023-12-02 20:03:46,905 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 326 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:46,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 21 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 20:03:46,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-02 20:03:46,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 112. [2023-12-02 20:03:46,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 107 states have (on average 1.158878504672897) internal successors, (124), 111 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 20:03:46,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2023-12-02 20:03:46,916 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 43 [2023-12-02 20:03:46,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:46,916 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2023-12-02 20:03:46,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 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 20:03:46,917 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2023-12-02 20:03:46,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 20:03:46,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:46,917 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:46,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 20:03:47,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:47,118 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:47,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:47,118 INFO L85 PathProgramCache]: Analyzing trace with hash -514390241, now seen corresponding path program 1 times [2023-12-02 20:03:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:47,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890429510] [2023-12-02 20:03:47,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:47,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:47,183 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 20:03:47,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:47,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890429510] [2023-12-02 20:03:47,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890429510] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:47,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013434871] [2023-12-02 20:03:47,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:47,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:47,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:47,184 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:47,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 20:03:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:47,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 20:03:47,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-02 20:03:47,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:03:47,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013434871] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:47,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:03:47,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-02 20:03:47,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744903179] [2023-12-02 20:03:47,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:47,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:03:47,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:47,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:03:47,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 20:03:47,287 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:47,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:47,320 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2023-12-02 20:03:47,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:03:47,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-02 20:03:47,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:47,321 INFO L225 Difference]: With dead ends: 112 [2023-12-02 20:03:47,321 INFO L226 Difference]: Without dead ends: 108 [2023-12-02 20:03:47,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-02 20:03:47,322 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:47,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 22 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 20:03:47,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-02 20:03:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 95. [2023-12-02 20:03:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.1170212765957446) internal successors, (105), 94 states have internal predecessors, (105), 0 states have call successors, (0), 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 20:03:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2023-12-02 20:03:47,330 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 54 [2023-12-02 20:03:47,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:47,331 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2023-12-02 20:03:47,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:47,331 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2023-12-02 20:03:47,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 20:03:47,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:03:47,332 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:47,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 20:03:47,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-02 20:03:47,533 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 20:03:47,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:03:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1233771794, now seen corresponding path program 1 times [2023-12-02 20:03:47,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:03:47,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799630785] [2023-12-02 20:03:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:47,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:03:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 34 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 20:03:47,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:03:47,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799630785] [2023-12-02 20:03:47,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799630785] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:03:47,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406352290] [2023-12-02 20:03:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:03:47,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:03:47,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:03:47,607 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:03:47,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 20:03:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:03:47,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 20:03:47,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:03:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 34 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 20:03:47,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:03:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 34 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 20:03:47,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406352290] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:03:47,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1889152594] [2023-12-02 20:03:47,753 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 20:03:47,753 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:03:47,753 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:03:47,753 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:03:47,754 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:03:50,065 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:03:51,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1889152594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:51,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:03:51,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [4, 4, 4] total 25 [2023-12-02 20:03:51,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590006603] [2023-12-02 20:03:51,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:51,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 20:03:51,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:51,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 20:03:51,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=533, Unknown=1, NotChecked=0, Total=650 [2023-12-02 20:03:51,175 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:51,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:03:51,487 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2023-12-02 20:03:51,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:03:51,488 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-02 20:03:51,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:03:51,488 INFO L225 Difference]: With dead ends: 95 [2023-12-02 20:03:51,488 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 20:03:51,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 140 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=120, Invalid=581, Unknown=1, NotChecked=0, Total=702 [2023-12-02 20:03:51,490 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:03:51,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 287 Invalid, 2 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 20:03:51,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 20:03:51,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 20:03:51,491 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 20:03:51,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 20:03:51,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2023-12-02 20:03:51,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:03:51,491 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 20:03:51,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:03:51,491 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 20:03:51,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 20:03:51,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-12-02 20:03:51,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2023-12-02 20:03:51,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2023-12-02 20:03:51,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2023-12-02 20:03:51,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2023-12-02 20:03:51,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2023-12-02 20:03:51,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2023-12-02 20:03:51,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2023-12-02 20:03:51,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2023-12-02 20:03:51,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2023-12-02 20:03:51,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-12-02 20:03:51,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-12-02 20:03:51,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-12-02 20:03:51,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-12-02 20:03:51,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 20:03:51,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-12-02 20:03:51,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 20:03:52,325 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 516) no Hoare annotation was computed. [2023-12-02 20:03:52,325 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 516) no Hoare annotation was computed. [2023-12-02 20:03:52,325 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 518) no Hoare annotation was computed. [2023-12-02 20:03:52,325 INFO L899 garLoopResultBuilder]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2023-12-02 20:03:52,325 INFO L899 garLoopResultBuilder]: For program point L515-3(line 515) no Hoare annotation was computed. [2023-12-02 20:03:52,325 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 528) no Hoare annotation was computed. [2023-12-02 20:03:52,325 INFO L899 garLoopResultBuilder]: For program point L515-4(line 515) no Hoare annotation was computed. [2023-12-02 20:03:52,326 INFO L895 garLoopResultBuilder]: At program point L515-5(lines 515 519) the Hoare annotation is: (let ((.cse2 (<= (mod |ULTIMATE.start_main_~array_size~0#1| 4294967296) 536870910)) (.cse3 (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647)) (.cse0 (<= |ULTIMATE.start_sort_~n#1| 536870910)) (.cse1 (= |ULTIMATE.start_sort_~pass~0#1| 1))) (or (and (= |ULTIMATE.start_sort_~x#1.offset| |ULTIMATE.start_sort_#in~x#1.offset|) (= |ULTIMATE.start_main_~numbers~0#1.offset| |ULTIMATE.start_sort_#in~x#1.offset|) (= |ULTIMATE.start_sort_~n#1| |ULTIMATE.start_sort_#in~n#1|) (= |ULTIMATE.start_main_~array_size~0#1| |ULTIMATE.start_sort_#in~n#1|) (= |ULTIMATE.start_sort_#in~x#1.base| |ULTIMATE.start_main_~numbers~0#1.base|) .cse0 (exists ((|v_ULTIMATE.start_main_~i~1#1_59| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |v_ULTIMATE.start_main_~i~1#1_59|) (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= |ULTIMATE.start_main_~array_size~0#1| |v_ULTIMATE.start_main_~i~1#1_59|))) (= |ULTIMATE.start_sort_#in~x#1.base| |ULTIMATE.start_sort_~x#1.base|) .cse1) (and .cse2 .cse3 (<= 2 |ULTIMATE.start_sort_~pass~0#1|) (<= |ULTIMATE.start_sort_~n#1| 2) (<= 1 |ULTIMATE.start_main_~array_size~0#1|)) (and (<= 1 |ULTIMATE.start_sort_~pass~0#1|) .cse2 .cse3 (<= |ULTIMATE.start_sort_~i~0#1| 2147483647) (<= 3 |ULTIMATE.start_main_~array_size~0#1|) (<= |ULTIMATE.start_sort_~pass~0#1| 2147483646) (<= (+ |ULTIMATE.start_sort_~n#1| 1) (+ |ULTIMATE.start_sort_~i~0#1| |ULTIMATE.start_sort_~pass~0#1|)) .cse0) (and (<= |ULTIMATE.start_sort_~n#1| 0) .cse1))) [2023-12-02 20:03:52,326 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 517) no Hoare annotation was computed. [2023-12-02 20:03:52,326 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 515) no Hoare annotation was computed. [2023-12-02 20:03:52,326 INFO L899 garLoopResultBuilder]: For program point L528-3(line 528) no Hoare annotation was computed. [2023-12-02 20:03:52,326 INFO L899 garLoopResultBuilder]: For program point L528-4(line 528) no Hoare annotation was computed. [2023-12-02 20:03:52,326 INFO L895 garLoopResultBuilder]: At program point L528-5(lines 528 531) the Hoare annotation is: (let ((.cse0 (<= (mod |ULTIMATE.start_main_~array_size~0#1| 4294967296) 536870910)) (.cse1 (<= 1 |#StackHeapBarrier|)) (.cse2 (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647)) (.cse3 (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|)) (.cse4 (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|)) (.cse5 (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0)) (.cse6 (= |ULTIMATE.start_main_~numbers~0#1.offset| 0)) (.cse7 (<= 1 |ULTIMATE.start_main_~array_size~0#1|))) (or (and .cse0 .cse1 .cse2 (<= 2 |ULTIMATE.start_main_~i~1#1|) .cse3 (<= 3 |ULTIMATE.start_main_~array_size~0#1|) .cse4 .cse5 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= 2 |ULTIMATE.start_main_~i~1#1|) .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~i~1#1| 1) .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~i~1#1| 0) .cse3 .cse4 .cse5 .cse6 .cse7))) [2023-12-02 20:03:52,326 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 518) no Hoare annotation was computed. [2023-12-02 20:03:52,326 INFO L899 garLoopResultBuilder]: For program point L516-1(line 516) no Hoare annotation was computed. [2023-12-02 20:03:52,326 INFO L899 garLoopResultBuilder]: For program point L516-2(lines 516 519) no Hoare annotation was computed. [2023-12-02 20:03:52,326 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 528) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point L516-4(lines 516 519) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point L516-5(line 516) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point L516-6(line 516) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L895 garLoopResultBuilder]: At program point L516-7(lines 516 519) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_sort_~i~0#1| 2147483647))) (or (and (= |ULTIMATE.start_sort_~x#1.offset| |ULTIMATE.start_sort_#in~x#1.offset|) .cse0 (= |ULTIMATE.start_main_~numbers~0#1.offset| |ULTIMATE.start_sort_#in~x#1.offset|) (= |ULTIMATE.start_sort_~n#1| 2) (= |ULTIMATE.start_sort_#in~x#1.base| |ULTIMATE.start_main_~numbers~0#1.base|) (exists ((|v_ULTIMATE.start_main_~i~1#1_46| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 2 |v_ULTIMATE.start_main_~i~1#1_46|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (= |ULTIMATE.start_main_~numbers~0#1.offset| 0))) (<= 0 |ULTIMATE.start_sort_~i~0#1|) (= 2 |ULTIMATE.start_sort_#in~n#1|) (= |ULTIMATE.start_main_~array_size~0#1| 2) (= |ULTIMATE.start_sort_#in~x#1.base| |ULTIMATE.start_sort_~x#1.base|) (= |ULTIMATE.start_sort_~pass~0#1| 1)) (and (<= 1 |ULTIMATE.start_sort_~pass~0#1|) (<= (mod |ULTIMATE.start_main_~array_size~0#1| 4294967296) 536870910) (<= 0 (+ |ULTIMATE.start_sort_~i~0#1| 2147483648)) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) .cse0 (<= 3 |ULTIMATE.start_main_~array_size~0#1|) (<= (+ |ULTIMATE.start_sort_~pass~0#1| 1) |ULTIMATE.start_sort_~n#1|) (<= |ULTIMATE.start_sort_~n#1| 536870910)))) [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 517) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 515) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 518) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point L517(line 517) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point L517-1(line 517) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point L517-2(lines 517 519) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 516) no Hoare annotation was computed. [2023-12-02 20:03:52,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 516) no Hoare annotation was computed. [2023-12-02 20:03:52,328 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 518) no Hoare annotation was computed. [2023-12-02 20:03:52,328 INFO L899 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2023-12-02 20:03:52,328 INFO L899 garLoopResultBuilder]: For program point L518-1(line 518) no Hoare annotation was computed. [2023-12-02 20:03:52,328 INFO L899 garLoopResultBuilder]: For program point L518-2(line 518) no Hoare annotation was computed. [2023-12-02 20:03:52,328 INFO L899 garLoopResultBuilder]: For program point L518-3(line 518) no Hoare annotation was computed. [2023-12-02 20:03:52,330 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:03:52,331 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 20:03:52,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc9!base could not be translated [2023-12-02 20:03:52,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc9!offset could not be translated [2023-12-02 20:03:52,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc9!base could not be translated [2023-12-02 20:03:52,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc9!offset could not be translated [2023-12-02 20:03:52,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc9!base could not be translated [2023-12-02 20:03:52,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc9!offset could not be translated [2023-12-02 20:03:52,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc9!base could not be translated [2023-12-02 20:03:52,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc9!offset could not be translated [2023-12-02 20:03:52,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~numbers~0 [2023-12-02 20:03:52,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~i~1#1_59 : int :: (((((1 <= #StackHeapBarrier && 0 <= v_ULTIMATE.start_main_~i~1#1_59) && 2 <= ~numbers~0!base) && 2 <= #t~malloc9!base) && #t~malloc9!offset == 0) && ~numbers~0!offset == 0) && ~array_size~0 <= v_ULTIMATE.start_main_~i~1#1_59) could not be translated [2023-12-02 20:03:52,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~numbers~0 [2023-12-02 20:03:52,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~i~1#1_46 : int :: ((((1 <= #StackHeapBarrier && 2 <= ~numbers~0!base) && 2 <= #t~malloc9!base) && 2 <= v_ULTIMATE.start_main_~i~1#1_46) && #t~malloc9!offset == 0) && ~numbers~0!offset == 0) could not be translated [2023-12-02 20:03:52,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 20:03:52,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-12-02 20:03:52,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:03:52 BoogieIcfgContainer [2023-12-02 20:03:52,356 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 20:03:52,357 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 20:03:52,357 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 20:03:52,357 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 20:03:52,357 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:03:09" (3/4) ... [2023-12-02 20:03:52,359 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 20:03:52,366 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 20:03:52,367 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-02 20:03:52,367 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 20:03:52,367 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 20:03:52,394 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((n == \old(n)) && (n <= 536870910)) && (pass == 1)) || ((2 <= pass) && (n <= 2))) || (((((1 <= pass) && (i <= 2147483647)) && (pass <= 2147483646)) && ((n + 1) <= (i + pass))) && (n <= 536870910))) || ((n <= 0) && (pass == 1))) [2023-12-02 20:03:52,394 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((i <= 2147483647) && (n == 2)) && (0 <= i)) && (2 == \old(n))) && (pass == 1)) || (((((1 <= pass) && (0 <= (i + 2147483648))) && (i <= 2147483647)) && ((pass + 1) <= n)) && (n <= 536870910))) [2023-12-02 20:03:52,409 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((n == \old(n)) && (n <= 536870910)) && (pass == 1)) || ((2 <= pass) && (n <= 2))) || (((((1 <= pass) && (i <= 2147483647)) && (pass <= 2147483646)) && ((n + 1) <= (i + pass))) && (n <= 536870910))) || ((n <= 0) && (pass == 1))) [2023-12-02 20:03:52,409 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((i <= 2147483647) && (n == 2)) && (0 <= i)) && (2 == \old(n))) && (pass == 1)) || (((((1 <= pass) && (0 <= (i + 2147483648))) && (i <= 2147483647)) && ((pass + 1) <= n)) && (n <= 536870910))) [2023-12-02 20:03:52,448 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 20:03:52,448 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 20:03:52,448 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 20:03:52,449 INFO L158 Benchmark]: Toolchain (without parser) took 43587.50ms. Allocated memory was 153.1MB in the beginning and 673.2MB in the end (delta: 520.1MB). Free memory was 120.2MB in the beginning and 564.1MB in the end (delta: -443.9MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2023-12-02 20:03:52,449 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 120.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:03:52,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.62ms. Allocated memory is still 153.1MB. Free memory was 120.2MB in the beginning and 103.8MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 20:03:52,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.48ms. Allocated memory is still 153.1MB. Free memory was 103.8MB in the beginning and 101.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:03:52,451 INFO L158 Benchmark]: Boogie Preprocessor took 26.71ms. Allocated memory is still 153.1MB. Free memory was 101.6MB in the beginning and 100.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:03:52,451 INFO L158 Benchmark]: RCFGBuilder took 332.58ms. Allocated memory is still 153.1MB. Free memory was 100.4MB in the beginning and 85.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 20:03:52,451 INFO L158 Benchmark]: TraceAbstraction took 42703.15ms. Allocated memory was 153.1MB in the beginning and 673.2MB in the end (delta: 520.1MB). Free memory was 84.5MB in the beginning and 569.4MB in the end (delta: -484.8MB). Peak memory consumption was 369.7MB. Max. memory is 16.1GB. [2023-12-02 20:03:52,452 INFO L158 Benchmark]: Witness Printer took 91.70ms. Allocated memory is still 673.2MB. Free memory was 569.4MB in the beginning and 564.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 20:03:52,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 120.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.62ms. Allocated memory is still 153.1MB. Free memory was 120.2MB in the beginning and 103.8MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.48ms. Allocated memory is still 153.1MB. Free memory was 103.8MB in the beginning and 101.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.71ms. Allocated memory is still 153.1MB. Free memory was 101.6MB in the beginning and 100.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.58ms. Allocated memory is still 153.1MB. Free memory was 100.4MB in the beginning and 85.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 42703.15ms. Allocated memory was 153.1MB in the beginning and 673.2MB in the end (delta: 520.1MB). Free memory was 84.5MB in the beginning and 569.4MB in the end (delta: -484.8MB). Peak memory consumption was 369.7MB. Max. memory is 16.1GB. * Witness Printer took 91.70ms. Allocated memory is still 673.2MB. Free memory was 569.4MB in the beginning and 564.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc9!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc9!offset could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc9!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc9!offset could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc9!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc9!offset could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc9!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc9!offset could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~numbers~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~i~1#1_59 : int :: (((((1 <= #StackHeapBarrier && 0 <= v_ULTIMATE.start_main_~i~1#1_59) && 2 <= ~numbers~0!base) && 2 <= #t~malloc9!base) && #t~malloc9!offset == 0) && ~numbers~0!offset == 0) && ~array_size~0 <= v_ULTIMATE.start_main_~i~1#1_59) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~numbers~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~i~1#1_46 : int :: ((((1 <= #StackHeapBarrier && 2 <= ~numbers~0!base) && 2 <= #t~malloc9!base) && 2 <= v_ULTIMATE.start_main_~i~1#1_46) && #t~malloc9!offset == 0) && ~numbers~0!offset == 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 * 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: 528]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 528]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 517]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 517]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 515]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 515]: 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, 36 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 42.6s, OverallIterations: 22, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 724 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 724 mSDsluCounter, 1602 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1144 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1769 IncrementalHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 458 mSDtfsCounter, 1769 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 954 GetRequests, 624 SyntacticMatches, 51 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2001 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=20, InterpolantAutomatonStates: 159, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 22 MinimizatonAttempts, 126 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 26 NumberOfFragments, 312 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1152 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 981 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 802 NumberOfCodeBlocks, 744 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 1002 ConstructedInterpolants, 0 QuantifiedInterpolants, 2652 SizeOfPredicates, 44 NumberOfNonLiveVariables, 1051 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 42 InterpolantComputations, 14 PerfectInterpolantSequences, 670/846 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 9.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 59, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 361, TOOLS_POST_TIME: 8.7s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 353, TOOLS_QUANTIFIERELIM_TIME: 8.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 513, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 24, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 20, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 38, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 59, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 18, LOOP_SUMMARIZER_CACHE_MISSES: 18, LOOP_SUMMARIZER_OVERALL_TIME: 7.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 7.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 38, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1565, DAG_COMPRESSION_RETAINED_NODES: 226, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 528]: Loop Invariant Derived loop invariant: (((((((((array_size % 4294967296) <= 536870910) && (array_size <= 2147483647)) && (2 <= i)) && (3 <= array_size)) && (i <= 2147483647)) || (((((array_size % 4294967296) <= 536870910) && (array_size <= 2147483647)) && (2 == i)) && (1 <= array_size))) || (((((array_size % 4294967296) <= 536870910) && (array_size <= 2147483647)) && (i == 1)) && (1 <= array_size))) || (((((array_size % 4294967296) <= 536870910) && (array_size <= 2147483647)) && (i == 0)) && (1 <= array_size))) - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: ((((((n == \old(n)) && (n <= 536870910)) && (pass == 1)) || ((2 <= pass) && (n <= 2))) || (((((1 <= pass) && (i <= 2147483647)) && (pass <= 2147483646)) && ((n + 1) <= (i + pass))) && (n <= 536870910))) || ((n <= 0) && (pass == 1))) - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: ((((((i <= 2147483647) && (n == 2)) && (0 <= i)) && (2 == \old(n))) && (pass == 1)) || (((((1 <= pass) && (0 <= (i + 2147483648))) && (i <= 2147483647)) && ((pass + 1) <= n)) && (n <= 536870910))) RESULT: Ultimate proved your program to be correct! [2023-12-02 20:03:52,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b80d0782-772f-4bb6-ad92-7c99d60d7810/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