./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91 --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 64bit --witnessprinter.graph.data.programhash a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:52:41,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:52:41,752 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:52:41,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:52:41,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:52:41,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:52:41,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:52:41,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:52:41,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:52:41,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:52:41,820 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:52:41,821 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:52:41,822 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:52:41,824 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:52:41,824 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:52:41,825 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:52:41,825 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:52:41,826 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:52:41,827 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:52:41,827 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:52:41,828 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:52:41,828 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:52:41,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:52:41,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:52:41,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:52:41,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:52:41,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:52:41,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:52:41,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:52:41,833 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:52:41,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:52:41,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:52:41,835 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:52:41,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:52:41,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:52:41,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:52:41,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:41,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:52:41,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:52:41,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:52:41,837 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:52:41,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:52:41,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:52:41,838 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:52:41,838 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:52:41,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:52:41,839 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_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af [2023-11-24 23:52:42,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:52:42,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:52:42,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:52:42,190 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:52:42,191 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:52:42,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i [2023-11-24 23:52:45,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:52:45,652 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:52:45,653 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i [2023-11-24 23:52:45,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/data/3b7dd851f/fc3858b635de48b9ae97570487b5bea9/FLAGc95c6d17c [2023-11-24 23:52:45,680 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/data/3b7dd851f/fc3858b635de48b9ae97570487b5bea9 [2023-11-24 23:52:45,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:52:45,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:52:45,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:45,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:52:45,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:52:45,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:45" (1/1) ... [2023-11-24 23:52:45,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562c92c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:45, skipping insertion in model container [2023-11-24 23:52:45,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:45" (1/1) ... [2023-11-24 23:52:45,752 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:52:46,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:46,062 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:52:46,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:46,170 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:52:46,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46 WrapperNode [2023-11-24 23:52:46,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:46,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:46,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:52:46,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:52:46,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,225 INFO L138 Inliner]: procedures = 111, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2023-11-24 23:52:46,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:46,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:52:46,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:52:46,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:52:46,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:52:46,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:52:46,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:52:46,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:52:46,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (1/1) ... [2023-11-24 23:52:46,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:46,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:46,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:52:46,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:52:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:52:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:52:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:52:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:52:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:52:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:52:46,565 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:52:46,568 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:52:46,763 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:52:46,842 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:52:46,842 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:52:46,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:46 BoogieIcfgContainer [2023-11-24 23:52:46,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:52:46,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:52:46,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:52:46,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:52:46,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:52:45" (1/3) ... [2023-11-24 23:52:46,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a26932d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:52:46, skipping insertion in model container [2023-11-24 23:52:46,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:46" (2/3) ... [2023-11-24 23:52:46,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a26932d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:52:46, skipping insertion in model container [2023-11-24 23:52:46,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:46" (3/3) ... [2023-11-24 23:52:46,854 INFO L112 eAbstractionObserver]: Analyzing ICFG ex3a-alloca.i [2023-11-24 23:52:46,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:52:46,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 23:52:46,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:52:46,942 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;@530877e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:52:46,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 23:52:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:52:46,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:52:46,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:46,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 23:52:46,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:52:46,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:46,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2065766, now seen corresponding path program 1 times [2023-11-24 23:52:46,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:46,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666916415] [2023-11-24 23:52:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:46,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:47,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:52:47,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998731590] [2023-11-24 23:52:47,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:47,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:47,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:47,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:47,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:52:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:47,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:52:47,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:47,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-24 23:52:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:47,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:52:47,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666916415] [2023-11-24 23:52:47,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:52:47,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998731590] [2023-11-24 23:52:47,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998731590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:47,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:47,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:52:47,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675152468] [2023-11-24 23:52:47,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:47,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:52:47,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:52:47,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:52:47,631 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-24 23:52:47,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:47,713 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-24 23:52:47,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:52:47,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 [2023-11-24 23:52:47,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:47,724 INFO L225 Difference]: With dead ends: 15 [2023-11-24 23:52:47,724 INFO L226 Difference]: Without dead ends: 10 [2023-11-24 23:52:47,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:52:47,731 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11 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 [2023-11-24 23:52:47,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:52:47,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-24 23:52:47,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-24 23:52:47,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 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) [2023-11-24 23:52:47,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-11-24 23:52:47,787 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2023-11-24 23:52:47,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:47,789 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-11-24 23:52:47,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-24 23:52:47,789 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-11-24 23:52:47,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:52:47,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:47,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-24 23:52:47,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:52:47,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:52:47,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:52:47,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:47,999 INFO L85 PathProgramCache]: Analyzing trace with hash 64038798, now seen corresponding path program 1 times [2023-11-24 23:52:47,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:48,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796906997] [2023-11-24 23:52:48,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:48,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:48,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:52:48,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628623760] [2023-11-24 23:52:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:48,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:48,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:48,043 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:48,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 23:52:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:48,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 23:52:48,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:48,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-24 23:52:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:48,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:52:48,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:48,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796906997] [2023-11-24 23:52:48,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:52:48,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628623760] [2023-11-24 23:52:48,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628623760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:48,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:48,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:52:48,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641901467] [2023-11-24 23:52:48,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:48,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:52:48,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:48,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:52:48,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:52:48,387 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-11-24 23:52:48,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:48,429 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2023-11-24 23:52:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:52:48,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2023-11-24 23:52:48,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:48,430 INFO L225 Difference]: With dead ends: 10 [2023-11-24 23:52:48,430 INFO L226 Difference]: Without dead ends: 9 [2023-11-24 23:52:48,431 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 [2023-11-24 23:52:48,432 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:48,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 11 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:52:48,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-24 23:52:48,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-24 23:52:48,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:52:48,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-24 23:52:48,436 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-24 23:52:48,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:48,437 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-24 23:52:48,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-11-24 23:52:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-24 23:52:48,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:52:48,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:48,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:52:48,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-24 23:52:48,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:48,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:52:48,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:48,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1985202792, now seen corresponding path program 1 times [2023-11-24 23:52:48,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:48,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498791277] [2023-11-24 23:52:48,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:48,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:48,679 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:52:48,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574570332] [2023-11-24 23:52:48,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:48,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:48,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:48,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:48,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 23:52:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:48,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-24 23:52:48,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:48,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-24 23:52:48,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-24 23:52:48,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 17 [2023-11-24 23:52:48,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 23:52:48,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:52:48,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-24 23:52:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:48,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:52:48,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:48,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498791277] [2023-11-24 23:52:48,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:52:48,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574570332] [2023-11-24 23:52:48,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574570332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:48,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:48,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:52:48,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208445623] [2023-11-24 23:52:48,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:48,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:52:48,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:48,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:52:48,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:52:48,861 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2023-11-24 23:52:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:48,896 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-11-24 23:52:48,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:52:48,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2023-11-24 23:52:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:48,897 INFO L225 Difference]: With dead ends: 17 [2023-11-24 23:52:48,897 INFO L226 Difference]: Without dead ends: 16 [2023-11-24 23:52:48,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:52:48,899 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:48,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:52:48,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-24 23:52:48,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2023-11-24 23:52:48,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:52:48,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-24 23:52:48,904 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2023-11-24 23:52:48,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:48,905 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-24 23:52:48,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2023-11-24 23:52:48,905 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-24 23:52:48,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:52:48,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:48,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:48,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:52:49,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:49,112 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:52:49,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:49,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1411744464, now seen corresponding path program 1 times [2023-11-24 23:52:49,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:49,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855868133] [2023-11-24 23:52:49,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:49,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:49,143 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:52:49,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983878085] [2023-11-24 23:52:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:49,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:49,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:49,151 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:49,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 23:52:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:49,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-24 23:52:49,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:49,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 32 [2023-11-24 23:52:49,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 17 [2023-11-24 23:52:49,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-24 23:52:49,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:52:49,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-24 23:52:49,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-24 23:52:49,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-24 23:52:49,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-24 23:52:49,320 WARN L876 $PredicateComparison]: unable to prove that (and (exists ((v_DerPreprocessor_3 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int))) (= (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| v_DerPreprocessor_3) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_4) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| 0) (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (not (= |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| |c_ULTIMATE.start_test_fun_~c~0#1.base|))) is different from true [2023-11-24 23:52:49,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:52:49,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-24 23:52:49,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 23:52:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:49,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:52:49,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:49,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855868133] [2023-11-24 23:52:49,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:52:49,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983878085] [2023-11-24 23:52:49,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983878085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:49,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:49,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:52:49,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598225398] [2023-11-24 23:52:49,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:49,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:52:49,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:49,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:52:49,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 23:52:49,385 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:52:49,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:49,402 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-11-24 23:52:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:52:49,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-24 23:52:49,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:49,403 INFO L225 Difference]: With dead ends: 16 [2023-11-24 23:52:49,403 INFO L226 Difference]: Without dead ends: 15 [2023-11-24 23:52:49,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 23:52:49,405 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:49,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2023-11-24 23:52:49,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-24 23:52:49,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-24 23:52:49,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:52:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-24 23:52:49,410 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2023-11-24 23:52:49,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:49,410 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-24 23:52:49,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:52:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-24 23:52:49,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:52:49,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:49,411 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2023-11-24 23:52:49,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:52:49,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:49,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:52:49,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:49,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1209346053, now seen corresponding path program 1 times [2023-11-24 23:52:49,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:49,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701185507] [2023-11-24 23:52:49,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:49,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:49,646 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:52:49,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132844532] [2023-11-24 23:52:49,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:49,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:49,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:49,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:49,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 23:52:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:49,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-24 23:52:49,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:49,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-24 23:52:49,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:52:49,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:52:49,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 23:52:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:49,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:52:49,896 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_111 (Array Int Int))) (< 0 (+ 2147483650 (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_111) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|)))) is different from false [2023-11-24 23:52:49,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:52:49,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2023-11-24 23:52:49,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2023-11-24 23:52:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2023-11-24 23:52:49,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:49,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701185507] [2023-11-24 23:52:49,967 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:52:49,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132844532] [2023-11-24 23:52:49,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132844532] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:52:49,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [163301063] [2023-11-24 23:52:49,989 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-24 23:52:49,990 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:52:49,993 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:52:49,997 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:52:49,998 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:52:55,547 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:52:56,740 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '285#(and (exists ((|v_ULTIMATE.start_test_fun_#t~mem7#1_21| Int) (|v_#memory_int_34| (Array Int (Array Int Int))) (|v_ULTIMATE.start_test_fun_#t~mem8#1_21| Int)) (and (= (store |v_#memory_int_34| |ULTIMATE.start_test_fun_~x_ref~0#1.base| (store (select |v_#memory_int_34| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) 0 (* |v_ULTIMATE.start_test_fun_#t~mem7#1_21| |v_ULTIMATE.start_test_fun_#t~mem8#1_21|))) |#memory_int|) (<= 0 (+ (* |v_ULTIMATE.start_test_fun_#t~mem7#1_21| |v_ULTIMATE.start_test_fun_#t~mem8#1_21|) 2147483648)) (<= (* |v_ULTIMATE.start_test_fun_#t~mem7#1_21| |v_ULTIMATE.start_test_fun_#t~mem8#1_21|) 2147483647))) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 2 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) (<= |ULTIMATE.start_test_fun_~x#1| 2147483647) (= |ULTIMATE.start_test_fun_~x_ref~0#1.offset| 0) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~x#1| 2147483648)) (= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (<= 2 |ULTIMATE.start_test_fun_~c~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~c~0#1.base|) 0)) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~x#1|)) (<= 2 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= 2 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= |ULTIMATE.start_test_fun_#in~x#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)) (<= (+ |ULTIMATE.start_test_fun_#t~mem9#1| 2147483650) 0))' at error location [2023-11-24 23:52:56,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:52:56,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:52:56,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-24 23:52:56,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368813103] [2023-11-24 23:52:56,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 23:52:56,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-24 23:52:56,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:56,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-24 23:52:56,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=161, Unknown=7, NotChecked=26, Total=240 [2023-11-24 23:52:56,742 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 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) [2023-11-24 23:52:56,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:56,800 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-24 23:52:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:52:56,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 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 12 [2023-11-24 23:52:56,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:56,801 INFO L225 Difference]: With dead ends: 15 [2023-11-24 23:52:56,801 INFO L226 Difference]: Without dead ends: 14 [2023-11-24 23:52:56,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=183, Unknown=7, NotChecked=28, Total=272 [2023-11-24 23:52:56,802 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:56,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2023-11-24 23:52:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-24 23:52:56,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-24 23:52:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:52:56,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-24 23:52:56,806 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2023-11-24 23:52:56,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:56,806 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-24 23:52:56,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 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) [2023-11-24 23:52:56,807 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-24 23:52:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:52:56,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:56,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1] [2023-11-24 23:52:56,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:52:57,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:57,008 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:52:57,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:57,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1164978077, now seen corresponding path program 1 times [2023-11-24 23:52:57,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:57,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616460512] [2023-11-24 23:52:57,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:57,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:57,031 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:52:57,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926033988] [2023-11-24 23:52:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:57,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:57,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:57,061 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:57,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-24 23:52:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:57,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-24 23:52:57,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:57,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-24 23:52:57,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-24 23:52:57,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 32 [2023-11-24 23:52:57,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 17 [2023-11-24 23:52:57,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 23:52:57,452 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-24 23:52:57,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 42 [2023-11-24 23:52:57,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 23:52:57,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2023-11-24 23:52:57,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:52:57,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-24 23:52:57,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:57,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:52:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:57,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616460512] [2023-11-24 23:52:57,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:52:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926033988] [2023-11-24 23:52:57,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926033988] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:52:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [170984881] [2023-11-24 23:52:57,881 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-24 23:52:57,882 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:52:57,882 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:52:57,882 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:52:57,882 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:53:02,953 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:53:04,273 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '414#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 2 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) (<= |ULTIMATE.start_test_fun_~x#1| 2147483647) (<= 2147483647 |ULTIMATE.start_test_fun_#t~mem9#1|) (= |ULTIMATE.start_test_fun_~x_ref~0#1.offset| 0) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~x#1| 2147483648)) (= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (<= 2 |ULTIMATE.start_test_fun_~c~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~c~0#1.base|) 0)) (exists ((|v_ULTIMATE.start_test_fun_#t~mem8#1_26| Int) (|v_#memory_int_48| (Array Int (Array Int Int))) (|v_ULTIMATE.start_test_fun_#t~mem7#1_26| Int)) (and (<= 0 (+ (* |v_ULTIMATE.start_test_fun_#t~mem7#1_26| |v_ULTIMATE.start_test_fun_#t~mem8#1_26|) 2147483648)) (<= (* |v_ULTIMATE.start_test_fun_#t~mem7#1_26| |v_ULTIMATE.start_test_fun_#t~mem8#1_26|) 2147483647) (= |#memory_int| (store |v_#memory_int_48| |ULTIMATE.start_test_fun_~x_ref~0#1.base| (store (select |v_#memory_int_48| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) 0 (* |v_ULTIMATE.start_test_fun_#t~mem7#1_26| |v_ULTIMATE.start_test_fun_#t~mem8#1_26|)))))) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~x#1|)) (<= 2 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= 2 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= |ULTIMATE.start_test_fun_#in~x#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)))' at error location [2023-11-24 23:53:04,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:53:04,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:53:04,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2023-11-24 23:53:04,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534232555] [2023-11-24 23:53:04,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 23:53:04,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-24 23:53:04,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:04,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-24 23:53:04,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=337, Unknown=10, NotChecked=0, Total=420 [2023-11-24 23:53:04,276 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:53:04,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:04,790 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-11-24 23:53:04,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 23:53:04,791 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-24 23:53:04,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:04,791 INFO L225 Difference]: With dead ends: 33 [2023-11-24 23:53:04,791 INFO L226 Difference]: Without dead ends: 32 [2023-11-24 23:53:04,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=138, Invalid=549, Unknown=15, NotChecked=0, Total=702 [2023-11-24 23:53:04,793 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 16 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:04,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 15 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 60 Invalid, 21 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:53:04,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-24 23:53:04,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-24 23:53:04,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.032258064516129) internal successors, (32), 31 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:53:04,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2023-11-24 23:53:04,807 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 13 [2023-11-24 23:53:04,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:04,807 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2023-11-24 23:53:04,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:53:04,808 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2023-11-24 23:53:04,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 23:53:04,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:04,810 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1] [2023-11-24 23:53:04,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-24 23:53:05,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:05,015 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:53:05,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:05,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2110260100, now seen corresponding path program 2 times [2023-11-24 23:53:05,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:05,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365845373] [2023-11-24 23:53:05,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:05,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:05,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:53:05,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1331840880] [2023-11-24 23:53:05,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 23:53:05,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:05,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:05,039 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:53:05,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-24 23:53:05,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-24 23:53:05,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 23:53:05,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 23:53:05,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:05,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 32 [2023-11-24 23:53:05,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 17 [2023-11-24 23:53:05,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 23:53:05,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:53:05,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:53:05,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-24 23:53:05,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-24 23:53:05,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-24 23:53:05,282 WARN L876 $PredicateComparison]: unable to prove that (and (exists ((v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (= (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| v_DerPreprocessor_11) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| 0))) (not (= |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| |c_ULTIMATE.start_test_fun_~c~0#1.base|))) is different from true [2023-11-24 23:53:05,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:53:05,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-11-24 23:53:05,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 23:53:05,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2023-11-24 23:53:05,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:05,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:05,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:05,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:05,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:05,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:05,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:53:05,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-24 23:53:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2023-11-24 23:53:05,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:53:05,660 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_208 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)) is different from false [2023-11-24 23:53:05,676 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_208 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)) is different from false [2023-11-24 23:53:05,777 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_34| Int) (v_ArrVal_206 (Array Int Int)) (v_ArrVal_208 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_206) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_34|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_34| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)))) is different from false [2023-11-24 23:53:05,927 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_204 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_35| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_34| Int) (v_ArrVal_206 (Array Int Int)) (v_ArrVal_208 (Array Int Int))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_204) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_35| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_206) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_34| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_34|) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_35|))))) is different from false [2023-11-24 23:53:06,170 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_36| Int) (v_ArrVal_204 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_35| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_34| Int) (v_ArrVal_206 (Array Int Int)) (v_ArrVal_208 (Array Int Int)) (v_ArrVal_202 (Array Int Int))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_202) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_36| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_204) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_35| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_206) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_34| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_34|) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_35|) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_36|)))))) is different from false [2023-11-24 23:53:06,490 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 4 refuted. 20 times theorem prover too weak. 0 trivial. 36 not checked. [2023-11-24 23:53:06,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:06,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365845373] [2023-11-24 23:53:06,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:53:06,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331840880] [2023-11-24 23:53:06,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331840880] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:53:06,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1714513006] [2023-11-24 23:53:06,496 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-24 23:53:06,496 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:53:06,496 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:53:06,496 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:53:06,497 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:53:11,491 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:53:12,768 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '710#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 2 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) (<= |ULTIMATE.start_test_fun_~x#1| 2147483647) (<= 2147483647 |ULTIMATE.start_test_fun_#t~mem9#1|) (exists ((|v_#memory_int_74| (Array Int (Array Int Int))) (|v_ULTIMATE.start_test_fun_#t~mem7#1_34| Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_34| Int)) (and (<= (* |v_ULTIMATE.start_test_fun_#t~mem7#1_34| |v_ULTIMATE.start_test_fun_#t~mem8#1_34|) 2147483647) (= |#memory_int| (store |v_#memory_int_74| |ULTIMATE.start_test_fun_~x_ref~0#1.base| (store (select |v_#memory_int_74| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) 0 (* |v_ULTIMATE.start_test_fun_#t~mem7#1_34| |v_ULTIMATE.start_test_fun_#t~mem8#1_34|)))) (<= 0 (+ (* |v_ULTIMATE.start_test_fun_#t~mem7#1_34| |v_ULTIMATE.start_test_fun_#t~mem8#1_34|) 2147483648)))) (= |ULTIMATE.start_test_fun_~x_ref~0#1.offset| 0) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~x#1| 2147483648)) (= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (<= 2 |ULTIMATE.start_test_fun_~c~0#1.base|) (= |ULTIMATE.start_test_fun_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~c~0#1.base|) 0)) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~x#1|)) (<= 2 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= 2 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= |ULTIMATE.start_test_fun_#in~x#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)))' at error location [2023-11-24 23:53:12,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:53:12,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:53:12,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2023-11-24 23:53:12,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025171820] [2023-11-24 23:53:12,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 23:53:12,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-24 23:53:12,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:12,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-24 23:53:12,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=373, Unknown=26, NotChecked=282, Total=812 [2023-11-24 23:53:12,771 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 21 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:53:19,461 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))))) (and (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_36| Int) (v_ArrVal_204 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_35| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_34| Int) (v_ArrVal_206 (Array Int Int)) (v_ArrVal_208 (Array Int Int)) (v_ArrVal_202 (Array Int Int))) (let ((.cse2 (select (store .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_202) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_36| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_204) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_35| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_206) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_34| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_34|) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_35|) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_36|)))))) (forall ((v_ArrVal_208 (Array Int Int))) (< (select (select (store .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)) (<= |c_ULTIMATE.start_test_fun_#t~mem9#1| 2147483646) (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_34| Int) (v_ArrVal_206 (Array Int Int)) (v_ArrVal_208 (Array Int Int))) (let ((.cse4 (select (store .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_206) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_34|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_34| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)))) (forall ((v_ArrVal_204 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_35| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_34| Int) (v_ArrVal_206 (Array Int Int)) (v_ArrVal_208 (Array Int Int))) (let ((.cse6 (select (store .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_204) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_35| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_206) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_34| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_34|) (< (select .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_35|))))))) is different from false [2023-11-24 23:53:23,804 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_34| Int) (v_ArrVal_206 (Array Int Int)) (v_ArrVal_208 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_206) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_34| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_34|)))) (forall ((v_ArrVal_208 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))) is different from false [2023-11-24 23:53:23,810 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_208 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)) (<= |c_ULTIMATE.start_test_fun_#t~mem9#1| 2147483646)) is different from false [2023-11-24 23:53:23,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:23,846 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2023-11-24 23:53:23,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-24 23:53:23,847 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 21 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-11-24 23:53:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:23,848 INFO L225 Difference]: With dead ends: 69 [2023-11-24 23:53:23,848 INFO L226 Difference]: Without dead ends: 68 [2023-11-24 23:53:23,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 64 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=230, Invalid=622, Unknown=54, NotChecked=576, Total=1482 [2023-11-24 23:53:23,850 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 10 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 471 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:23,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 60 Invalid, 13 Unknown, 471 Unchecked, 0.7s Time] [2023-11-24 23:53:23,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-24 23:53:23,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-24 23:53:23,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.0149253731343284) internal successors, (68), 67 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:53:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2023-11-24 23:53:23,862 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 31 [2023-11-24 23:53:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:23,863 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2023-11-24 23:53:23,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 21 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:53:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2023-11-24 23:53:23,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-24 23:53:23,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:23,866 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 1, 1] [2023-11-24 23:53:23,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-24 23:53:24,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:24,072 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:53:24,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:24,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1410103278, now seen corresponding path program 3 times [2023-11-24 23:53:24,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:24,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540272872] [2023-11-24 23:53:24,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:24,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:24,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:53:24,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [270381065] [2023-11-24 23:53:24,120 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-24 23:53:24,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:24,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:24,121 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:53:24,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f7e6f9-3278-41fb-b15b-036b06812a9a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-24 23:53:24,280 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-24 23:53:24,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 23:53:24,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-24 23:53:24,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:24,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-24 23:53:24,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-24 23:53:24,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 17 [2023-11-24 23:53:24,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 23:53:24,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:24,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2023-11-24 23:53:24,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:24,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:24,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:24,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:24,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:24,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:24,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:24,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:24,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:24,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:24,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:24,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:24,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:24,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:25,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:25,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:25,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:53:25,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-24 23:53:25,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:53:25,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-24 23:53:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:53:25,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:53:25,314 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_332 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)) is different from false [2023-11-24 23:53:26,892 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_326 (Array Int Int)) (v_ArrVal_328 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_55| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_54| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_53| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_52| Int) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_324 (Array Int Int))) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_55| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_326) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_54| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_328) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_53| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_52|) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_53|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_52| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_55|) (< (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_54|))))))) is different from false [2023-11-24 23:53:28,096 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_320 (Array Int Int)) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_322 (Array Int Int)) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_324 (Array Int Int)) (v_ArrVal_326 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_57| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_56| Int) (v_ArrVal_328 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_55| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_54| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_53| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_52| Int)) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_57| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_322) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_56| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_55| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_326) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_54| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_328) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_53| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_57|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_52| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_53|) (< (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_55|) (< (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_54|) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_52|) (< (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_56|))))))))) is different from false [2023-11-24 23:53:28,359 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_320 (Array Int Int)) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_322 (Array Int Int)) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_324 (Array Int Int)) (v_ArrVal_326 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_57| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_56| Int) (v_ArrVal_328 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_55| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_54| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_53| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_52| Int)) (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_57| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_322) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_56| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_55| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_326) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_54| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_328) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_53| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_54|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_52| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_55|) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_52|) (< (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_56|) (< (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_57|) (< (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_53|))))))))) is different from false [2023-11-24 23:53:31,831 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_320 (Array Int Int)) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_322 (Array Int Int)) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_324 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_59| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_58| Int) (v_ArrVal_326 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_57| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_56| Int) (v_ArrVal_328 (Array Int Int)) (v_ArrVal_316 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_55| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_54| Int) (v_ArrVal_318 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_53| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_52| Int)) (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_316) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_59| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_318) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_58| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_57| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_322) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_56| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse7 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_55| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_326) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse7 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_54| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_328) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_53| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_57|) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_53|) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_52|) (< (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_55|) (< (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_56|) (< (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_58|) (< (select .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_59|) (< (select .cse7 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_54|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_52| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647))))))))))) is different from false [2023-11-24 23:53:33,753 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_320 (Array Int Int)) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_322 (Array Int Int)) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_324 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_59| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_58| Int) (v_ArrVal_326 (Array Int Int)) (v_ArrVal_314 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_57| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_56| Int) (v_ArrVal_328 (Array Int Int)) (v_ArrVal_316 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_55| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_54| Int) (v_ArrVal_318 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_53| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_52| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_60| Int)) (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_314) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse8 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_60| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_316) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse7 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse8 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_59| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_318) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse7 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_58| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_57| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_322) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse6 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_56| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_55| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_326) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_54| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_328) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_53| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_52| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_54|) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_57|) (< (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_53|) (< (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_60|) (< (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_56|) (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_52|) (< (select .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_55|) (< (select .cse7 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_58|) (< (select .cse8 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_59|)))))))))))) is different from false [2023-11-24 23:53:34,025 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_320 (Array Int Int)) (v_ArrVal_330 (Array Int Int)) (v_ArrVal_322 (Array Int Int)) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_324 (Array Int Int)) (v_ArrVal_312 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_59| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_58| Int) (v_ArrVal_326 (Array Int Int)) (v_ArrVal_314 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_57| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_56| Int) (v_ArrVal_328 (Array Int Int)) (v_ArrVal_316 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_55| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_54| Int) (v_ArrVal_318 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem9#1_53| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_52| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_61| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_60| Int)) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_312) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse9 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_61| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_314) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse7 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse9 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_60| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_316) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse8 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse7 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_59| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_318) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse8 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_58| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse6 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_57| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_322) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_56| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_55| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_326) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_54| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_328) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_53| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_330) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_57|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_52| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_52|) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_54|) (< (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_53|) (< (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_61|) (< (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_55|) (< (select .cse6 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_56|) (< (select .cse7 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_59|) (< (select .cse8 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_58|) (< (select .cse9 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_60|))))))))))))) is different from false [2023-11-24 23:53:34,421 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 42 refuted. 90 times theorem prover too weak. 0 trivial. 198 not checked. [2023-11-24 23:53:34,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:34,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540272872] [2023-11-24 23:53:34,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:53:34,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270381065] [2023-11-24 23:53:34,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270381065] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:53:34,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1884040598] [2023-11-24 23:53:34,425 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-24 23:53:34,425 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:53:34,425 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:53:34,425 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:53:34,426 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:53:39,276 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:53:40,870 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1346#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 2 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) (<= |ULTIMATE.start_test_fun_~x#1| 2147483647) (<= 2147483647 |ULTIMATE.start_test_fun_#t~mem9#1|) (= |ULTIMATE.start_test_fun_~x_ref~0#1.offset| 0) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~x#1| 2147483648)) (= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (<= |ULTIMATE.start_main_#t~nondet11#1| 2147483647) (<= 2 |ULTIMATE.start_test_fun_~c~0#1.base|) (exists ((|v_ULTIMATE.start_test_fun_#t~mem8#1_48| Int) (|v_ULTIMATE.start_test_fun_#t~mem7#1_48| Int) (|v_#memory_int_124| (Array Int (Array Int Int)))) (and (= |#memory_int| (store |v_#memory_int_124| |ULTIMATE.start_test_fun_~x_ref~0#1.base| (store (select |v_#memory_int_124| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) 0 (* |v_ULTIMATE.start_test_fun_#t~mem7#1_48| |v_ULTIMATE.start_test_fun_#t~mem8#1_48|)))) (<= 0 (+ (* |v_ULTIMATE.start_test_fun_#t~mem7#1_48| |v_ULTIMATE.start_test_fun_#t~mem8#1_48|) 2147483648)) (<= (* |v_ULTIMATE.start_test_fun_#t~mem7#1_48| |v_ULTIMATE.start_test_fun_#t~mem8#1_48|) 2147483647))) (= |ULTIMATE.start_test_fun_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_test_fun_~c~0#1.base|) 0)) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~x#1|)) (<= 2 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= 2 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= |ULTIMATE.start_test_fun_#in~x#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet11#1|)))' at error location [2023-11-24 23:53:40,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:53:40,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:53:40,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 44 [2023-11-24 23:53:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121667461] [2023-11-24 23:53:40,871 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 23:53:40,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-24 23:53:40,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:40,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-24 23:53:40,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=509, Invalid=1441, Unknown=148, NotChecked=658, Total=2756 [2023-11-24 23:53:40,875 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand has 46 states, 45 states have (on average 2.977777777777778) internal successors, (134), 45 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)