./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash befa5004268d4c15cae2c05402ac6cc0f86cef85e498084909e66f7e8cc4b8f3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:32:18,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:32:18,938 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-13 23:32:18,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:32:18,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:32:18,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:32:18,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:32:18,985 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:32:18,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:32:18,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:32:18,986 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:32:18,986 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:32:18,986 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:32:18,986 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:32:18,986 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:32:18,988 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:32:18,988 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:32:18,988 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:32:18,989 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:32:18,989 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:32:18,989 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:32:18,989 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:32:18,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:32:18,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:32:18,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:32:18,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:32:18,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:32:18,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:32:18,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:32:18,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:32:18,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:18,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:32:18,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:32:18,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:32:18,993 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:32:18,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:32:18,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:32:18,993 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:32:18,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:32:18,993 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> befa5004268d4c15cae2c05402ac6cc0f86cef85e498084909e66f7e8cc4b8f3 [2024-11-13 23:32:19,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:32:19,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:32:19,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:32:19,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:32:19,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:32:19,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c Unable to find full path for "g++" [2024-11-13 23:32:21,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:32:21,518 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:32:21,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c [2024-11-13 23:32:21,532 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/data/47dc480d9/f3ae380ceab04bf68772182b5aaabf92/FLAGfeeab920a [2024-11-13 23:32:21,556 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/data/47dc480d9/f3ae380ceab04bf68772182b5aaabf92 [2024-11-13 23:32:21,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:32:21,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:32:21,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:21,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:32:21,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:32:21,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c4e061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21, skipping insertion in model container [2024-11-13 23:32:21,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,596 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:32:21,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:21,806 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:32:21,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:32:21,855 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:32:21,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21 WrapperNode [2024-11-13 23:32:21,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:32:21,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:21,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:32:21,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:32:21,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,903 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-13 23:32:21,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:32:21,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:32:21,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:32:21,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:32:21,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:32:21,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:32:21,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:32:21,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:32:21,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (1/1) ... [2024-11-13 23:32:21,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:32:21,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:21,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:32:21,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:32:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:32:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:32:22,024 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:32:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:32:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:32:22,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:32:22,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 23:32:22,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 23:32:22,107 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:32:22,110 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:32:22,343 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 23:32:22,343 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:32:22,378 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:32:22,378 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 23:32:22,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:22 BoogieIcfgContainer [2024-11-13 23:32:22,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:32:22,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:32:22,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:32:22,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:32:22,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:32:21" (1/3) ... [2024-11-13 23:32:22,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182299e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:22, skipping insertion in model container [2024-11-13 23:32:22,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:32:21" (2/3) ... [2024-11-13 23:32:22,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182299e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:32:22, skipping insertion in model container [2024-11-13 23:32:22,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:22" (3/3) ... [2024-11-13 23:32:22,391 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm1_unwindbound5.c [2024-11-13 23:32:22,410 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:32:22,412 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG lcm1_unwindbound5.c that has 3 procedures, 38 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-13 23:32:22,490 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:32:22,504 INFO L333 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, 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;@62cc8ed6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:32:22,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-13 23:32:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 20 states have (on average 1.75) internal successors, (35), 26 states have internal predecessors, (35), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 23:32:22,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 23:32:22,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:22,518 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:22,519 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:32:22,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1238323755, now seen corresponding path program 1 times [2024-11-13 23:32:22,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:22,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042873671] [2024-11-13 23:32:22,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:22,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:22,915 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:32:22,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:22,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042873671] [2024-11-13 23:32:22,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042873671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:22,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:22,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:32:22,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594113886] [2024-11-13 23:32:22,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:22,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:32:22,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:22,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:32:22,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:32:22,949 INFO L87 Difference]: Start difference. First operand has 38 states, 20 states have (on average 1.75) internal successors, (35), 26 states have internal predecessors, (35), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 23:32:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:23,076 INFO L93 Difference]: Finished difference Result 72 states and 103 transitions. [2024-11-13 23:32:23,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:32:23,079 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 16 [2024-11-13 23:32:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:23,086 INFO L225 Difference]: With dead ends: 72 [2024-11-13 23:32:23,088 INFO L226 Difference]: Without dead ends: 38 [2024-11-13 23:32:23,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:32:23,098 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 9 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:23,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 111 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:32:23,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-13 23:32:23,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2024-11-13 23:32:23,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 27 states have internal predecessors, (32), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 23:32:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2024-11-13 23:32:23,144 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 16 [2024-11-13 23:32:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:23,146 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2024-11-13 23:32:23,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 23:32:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2024-11-13 23:32:23,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 23:32:23,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:23,148 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:23,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:32:23,149 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:32:23,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:23,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1746164020, now seen corresponding path program 1 times [2024-11-13 23:32:23,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:23,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477549062] [2024-11-13 23:32:23,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:23,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:23,468 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:32:23,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:23,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477549062] [2024-11-13 23:32:23,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477549062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:23,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:23,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:32:23,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082131333] [2024-11-13 23:32:23,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:23,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:32:23,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:23,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:32:23,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:32:23,473 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:32:23,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:23,714 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2024-11-13 23:32:23,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:32:23,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2024-11-13 23:32:23,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:23,719 INFO L225 Difference]: With dead ends: 55 [2024-11-13 23:32:23,719 INFO L226 Difference]: Without dead ends: 54 [2024-11-13 23:32:23,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 23:32:23,720 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:23,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 125 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:32:23,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-13 23:32:23,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2024-11-13 23:32:23,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 35 states have internal predecessors, (43), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 23:32:23,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2024-11-13 23:32:23,737 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 24 [2024-11-13 23:32:23,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:23,737 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2024-11-13 23:32:23,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:32:23,738 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2024-11-13 23:32:23,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 23:32:23,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:23,742 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:23,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:32:23,743 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:32:23,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:23,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1703490164, now seen corresponding path program 1 times [2024-11-13 23:32:23,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:23,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996581066] [2024-11-13 23:32:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:23,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:32:23,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:23,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996581066] [2024-11-13 23:32:23,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996581066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:23,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:23,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:32:23,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546814905] [2024-11-13 23:32:23,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:23,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:32:23,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:23,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:32:23,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:32:23,966 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:32:24,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:24,135 INFO L93 Difference]: Finished difference Result 80 states and 100 transitions. [2024-11-13 23:32:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 23:32:24,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2024-11-13 23:32:24,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:24,137 INFO L225 Difference]: With dead ends: 80 [2024-11-13 23:32:24,137 INFO L226 Difference]: Without dead ends: 54 [2024-11-13 23:32:24,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 23:32:24,139 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:24,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 134 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:32:24,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-13 23:32:24,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-13 23:32:24,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 40 states have internal predecessors, (48), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 23:32:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2024-11-13 23:32:24,152 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 25 [2024-11-13 23:32:24,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:24,152 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2024-11-13 23:32:24,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:32:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2024-11-13 23:32:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 23:32:24,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:24,154 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:24,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:32:24,154 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:32:24,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:24,155 INFO L85 PathProgramCache]: Analyzing trace with hash 755097098, now seen corresponding path program 1 times [2024-11-13 23:32:24,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:24,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582465261] [2024-11-13 23:32:24,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:24,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:32:24,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:24,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582465261] [2024-11-13 23:32:24,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582465261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:24,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:24,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 23:32:24,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509061884] [2024-11-13 23:32:24,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:24,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 23:32:24,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:24,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 23:32:24,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-13 23:32:24,404 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 23:32:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:24,731 INFO L93 Difference]: Finished difference Result 70 states and 83 transitions. [2024-11-13 23:32:24,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 23:32:24,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 32 [2024-11-13 23:32:24,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:24,735 INFO L225 Difference]: With dead ends: 70 [2024-11-13 23:32:24,735 INFO L226 Difference]: Without dead ends: 69 [2024-11-13 23:32:24,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-13 23:32:24,736 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 48 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:24,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 142 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:32:24,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-13 23:32:24,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2024-11-13 23:32:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 46 states have internal predecessors, (57), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 23:32:24,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2024-11-13 23:32:24,749 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 32 [2024-11-13 23:32:24,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:24,749 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2024-11-13 23:32:24,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 23:32:24,750 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2024-11-13 23:32:24,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:32:24,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:24,751 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:24,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 23:32:24,751 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:32:24,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:24,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1933173643, now seen corresponding path program 1 times [2024-11-13 23:32:24,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:24,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233545059] [2024-11-13 23:32:24,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:24,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:24,935 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:32:24,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:24,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233545059] [2024-11-13 23:32:24,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233545059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:24,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:24,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 23:32:24,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75097929] [2024-11-13 23:32:24,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:24,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 23:32:24,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:24,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 23:32:24,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 23:32:24,939 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 23:32:25,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:25,142 INFO L93 Difference]: Finished difference Result 100 states and 124 transitions. [2024-11-13 23:32:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:32:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 33 [2024-11-13 23:32:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:25,144 INFO L225 Difference]: With dead ends: 100 [2024-11-13 23:32:25,144 INFO L226 Difference]: Without dead ends: 74 [2024-11-13 23:32:25,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-13 23:32:25,145 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 28 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:25,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 141 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:32:25,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-13 23:32:25,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2024-11-13 23:32:25,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 52 states have internal predecessors, (64), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:32:25,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2024-11-13 23:32:25,161 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 33 [2024-11-13 23:32:25,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:25,162 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2024-11-13 23:32:25,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 23:32:25,162 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2024-11-13 23:32:25,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:32:25,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:25,163 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:25,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 23:32:25,163 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:32:25,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:25,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1933212372, now seen corresponding path program 1 times [2024-11-13 23:32:25,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:25,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321249300] [2024-11-13 23:32:25,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:25,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:25,343 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:32:25,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:25,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321249300] [2024-11-13 23:32:25,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321249300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:32:25,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469260426] [2024-11-13 23:32:25,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:25,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:25,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:25,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:32:25,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:32:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:25,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:32:25,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:32:25,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:32:25,793 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:32:25,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469260426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:32:25,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [5804836] [2024-11-13 23:32:25,818 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-13 23:32:25,818 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:32:25,826 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:32:25,831 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:32:25,831 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:32:29,887 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 118 for LOIs [2024-11-13 23:32:30,032 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:32:30,034 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:32:33,745 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1227#(and (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0))' at error location [2024-11-13 23:32:33,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:32:33,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:32:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-13 23:32:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402715137] [2024-11-13 23:32:33,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:32:33,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 23:32:33,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:33,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 23:32:33,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1201, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 23:32:33,751 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 19 states, 18 states have (on average 2.5) internal successors, (45), 19 states have internal predecessors, (45), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-13 23:32:34,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:34,347 INFO L93 Difference]: Finished difference Result 200 states and 250 transitions. [2024-11-13 23:32:34,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-13 23:32:34,348 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.5) internal successors, (45), 19 states have internal predecessors, (45), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 33 [2024-11-13 23:32:34,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:34,350 INFO L225 Difference]: With dead ends: 200 [2024-11-13 23:32:34,351 INFO L226 Difference]: Without dead ends: 166 [2024-11-13 23:32:34,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 948 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=458, Invalid=2092, Unknown=0, NotChecked=0, Total=2550 [2024-11-13 23:32:34,354 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 114 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:34,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 257 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 23:32:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-13 23:32:34,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 134. [2024-11-13 23:32:34,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 101 states have internal predecessors, (130), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-13 23:32:34,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 166 transitions. [2024-11-13 23:32:34,370 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 166 transitions. Word has length 33 [2024-11-13 23:32:34,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:34,370 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 166 transitions. [2024-11-13 23:32:34,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.5) internal successors, (45), 19 states have internal predecessors, (45), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-13 23:32:34,371 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 166 transitions. [2024-11-13 23:32:34,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 23:32:34,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:34,372 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:34,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:32:34,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 23:32:34,576 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:32:34,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:34,576 INFO L85 PathProgramCache]: Analyzing trace with hash -819553455, now seen corresponding path program 1 times [2024-11-13 23:32:34,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:34,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129819959] [2024-11-13 23:32:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:34,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:34,698 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:32:34,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:34,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129819959] [2024-11-13 23:32:34,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129819959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:34,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:34,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:32:34,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515921722] [2024-11-13 23:32:34,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:34,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:32:34,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:34,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:32:34,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:32:34,699 INFO L87 Difference]: Start difference. First operand 134 states and 166 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 23:32:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:34,814 INFO L93 Difference]: Finished difference Result 231 states and 290 transitions. [2024-11-13 23:32:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:32:34,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 40 [2024-11-13 23:32:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:34,816 INFO L225 Difference]: With dead ends: 231 [2024-11-13 23:32:34,816 INFO L226 Difference]: Without dead ends: 176 [2024-11-13 23:32:34,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:32:34,818 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 32 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:34,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 151 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:32:34,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-13 23:32:34,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 154. [2024-11-13 23:32:34,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 117 states have internal predecessors, (153), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 23:32:34,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 197 transitions. [2024-11-13 23:32:34,835 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 197 transitions. Word has length 40 [2024-11-13 23:32:34,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:34,835 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 197 transitions. [2024-11-13 23:32:34,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 23:32:34,835 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 197 transitions. [2024-11-13 23:32:34,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-13 23:32:34,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:34,836 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:34,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 23:32:34,836 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:32:34,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:34,837 INFO L85 PathProgramCache]: Analyzing trace with hash 363746018, now seen corresponding path program 1 times [2024-11-13 23:32:34,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:34,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672955320] [2024-11-13 23:32:34,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:34,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:35,039 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:32:35,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:35,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672955320] [2024-11-13 23:32:35,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672955320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:32:35,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942359070] [2024-11-13 23:32:35,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:35,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:35,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:35,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:32:35,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:32:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:35,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:32:35,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:35,233 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:32:35,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:32:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:32:35,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942359070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:32:35,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [14032777] [2024-11-13 23:32:35,458 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-13 23:32:35,458 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:32:35,459 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:32:35,459 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:32:35,459 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:32:37,244 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2024-11-13 23:32:37,245 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:32:37,246 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:32:47,135 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2571#(and (= (mod (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~x~0#1|) 4294967296) (mod (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) 4294967296)) (<= 1 |#StackHeapBarrier|) (<= 2147483647 ~counter~0) (<= (+ (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 1) (mod (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) 4294967296)) (= |ULTIMATE.start_main_~v~0#1| 0))' at error location [2024-11-13 23:32:47,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:32:47,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:32:47,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-13 23:32:47,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642840922] [2024-11-13 23:32:47,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:32:47,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 23:32:47,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:47,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 23:32:47,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=1866, Unknown=0, NotChecked=0, Total=2256 [2024-11-13 23:32:47,138 INFO L87 Difference]: Start difference. First operand 154 states and 197 transitions. Second operand has 25 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 25 states have internal predecessors, (61), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-13 23:32:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:48,186 INFO L93 Difference]: Finished difference Result 324 states and 418 transitions. [2024-11-13 23:32:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-13 23:32:48,186 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 25 states have internal predecessors, (61), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) Word has length 41 [2024-11-13 23:32:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:48,188 INFO L225 Difference]: With dead ends: 324 [2024-11-13 23:32:48,188 INFO L226 Difference]: Without dead ends: 251 [2024-11-13 23:32:48,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1910 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=788, Invalid=4468, Unknown=0, NotChecked=0, Total=5256 [2024-11-13 23:32:48,191 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 181 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:48,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 236 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 23:32:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-13 23:32:48,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 218. [2024-11-13 23:32:48,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 161 states have (on average 1.3540372670807452) internal successors, (218), 166 states have internal predecessors, (218), 29 states have call successors, (29), 22 states have call predecessors, (29), 22 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-13 23:32:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 276 transitions. [2024-11-13 23:32:48,210 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 276 transitions. Word has length 41 [2024-11-13 23:32:48,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:48,211 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 276 transitions. [2024-11-13 23:32:48,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 25 states have internal predecessors, (61), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-13 23:32:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 276 transitions. [2024-11-13 23:32:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 23:32:48,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:48,212 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:48,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 23:32:48,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:48,413 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:32:48,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:48,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1403810247, now seen corresponding path program 1 times [2024-11-13 23:32:48,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:48,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401034306] [2024-11-13 23:32:48,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:48,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:48,582 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:32:48,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:48,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401034306] [2024-11-13 23:32:48,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401034306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:32:48,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478476444] [2024-11-13 23:32:48,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:48,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:48,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:48,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:32:48,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:32:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:48,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:32:48,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:48,744 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:32:48,744 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:32:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:32:48,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478476444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:32:48,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1499176705] [2024-11-13 23:32:48,894 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-13 23:32:48,894 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:32:48,895 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:32:48,895 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:32:48,895 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:32:51,869 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2024-11-13 23:32:51,871 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:32:51,872 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:33:00,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1499176705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:01,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:33:01,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [11, 9, 10] total 39 [2024-11-13 23:33:01,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607245044] [2024-11-13 23:33:01,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:01,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 23:33:01,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:01,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 23:33:01,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1301, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 23:33:01,002 INFO L87 Difference]: Start difference. First operand 218 states and 276 transitions. Second operand has 24 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:33:06,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 23:33:25,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 23:33:37,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:37,106 INFO L93 Difference]: Finished difference Result 371 states and 469 transitions. [2024-11-13 23:33:37,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-13 23:33:37,107 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 44 [2024-11-13 23:33:37,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:37,109 INFO L225 Difference]: With dead ends: 371 [2024-11-13 23:33:37,109 INFO L226 Difference]: Without dead ends: 270 [2024-11-13 23:33:37,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 97 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 36.6s TimeCoverageRelationStatistics Valid=344, Invalid=2623, Unknown=3, NotChecked=0, Total=2970 [2024-11-13 23:33:37,111 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 61 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:37,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 135 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 729 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2024-11-13 23:33:37,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-13 23:33:37,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 233. [2024-11-13 23:33:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 176 states have (on average 1.3465909090909092) internal successors, (237), 181 states have internal predecessors, (237), 29 states have call successors, (29), 22 states have call predecessors, (29), 22 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-13 23:33:37,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 295 transitions. [2024-11-13 23:33:37,142 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 295 transitions. Word has length 44 [2024-11-13 23:33:37,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:37,142 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 295 transitions. [2024-11-13 23:33:37,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:33:37,142 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 295 transitions. [2024-11-13 23:33:37,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 23:33:37,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:37,144 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:37,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 23:33:37,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:37,348 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:33:37,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash 568444742, now seen corresponding path program 1 times [2024-11-13 23:33:37,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:37,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622375088] [2024-11-13 23:33:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:37,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:37,518 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:33:37,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:37,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622375088] [2024-11-13 23:33:37,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622375088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:33:37,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813156223] [2024-11-13 23:33:37,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:37,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:37,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:37,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:37,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:33:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:37,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:33:37,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:33:37,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:33:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:33:37,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813156223] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:33:37,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [72549848] [2024-11-13 23:33:37,832 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-13 23:33:37,832 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:33:37,833 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:33:37,833 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:33:37,833 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:33:40,496 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2024-11-13 23:33:40,498 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:33:40,501 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:33:50,183 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4909#(and (= (mod (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) 4294967296) (mod (+ (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~x~0#1|)) 4294967296)) (<= 1 |#StackHeapBarrier|) (= ~counter~0 2147483647) (<= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296)))' at error location [2024-11-13 23:33:50,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:33:50,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:33:50,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 17 [2024-11-13 23:33:50,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244354458] [2024-11-13 23:33:50,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:33:50,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 23:33:50,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:50,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 23:33:50,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1373, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 23:33:50,185 INFO L87 Difference]: Start difference. First operand 233 states and 295 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-13 23:33:50,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:50,554 INFO L93 Difference]: Finished difference Result 368 states and 471 transitions. [2024-11-13 23:33:50,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 23:33:50,557 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 45 [2024-11-13 23:33:50,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:50,559 INFO L225 Difference]: With dead ends: 368 [2024-11-13 23:33:50,559 INFO L226 Difference]: Without dead ends: 246 [2024-11-13 23:33:50,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 98 SyntacticMatches, 8 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=281, Invalid=2269, Unknown=0, NotChecked=0, Total=2550 [2024-11-13 23:33:50,563 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 47 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:50,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 201 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:33:50,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-13 23:33:50,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 241. [2024-11-13 23:33:50,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 182 states have (on average 1.3241758241758241) internal successors, (241), 187 states have internal predecessors, (241), 30 states have call successors, (30), 23 states have call predecessors, (30), 23 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 23:33:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 301 transitions. [2024-11-13 23:33:50,590 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 301 transitions. Word has length 45 [2024-11-13 23:33:50,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:50,591 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 301 transitions. [2024-11-13 23:33:50,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-13 23:33:50,591 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 301 transitions. [2024-11-13 23:33:50,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 23:33:50,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:50,592 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:50,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 23:33:50,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:50,793 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:33:50,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:50,794 INFO L85 PathProgramCache]: Analyzing trace with hash 841845786, now seen corresponding path program 1 times [2024-11-13 23:33:50,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:50,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765680721] [2024-11-13 23:33:50,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:50,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:33:51,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:51,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765680721] [2024-11-13 23:33:51,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765680721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:33:51,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660376531] [2024-11-13 23:33:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:51,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:51,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:51,039 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:51,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:33:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:51,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:33:51,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:33:51,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:33:51,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660376531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:51,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:33:51,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2024-11-13 23:33:51,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812997250] [2024-11-13 23:33:51,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:51,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 23:33:51,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:51,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 23:33:51,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-13 23:33:51,294 INFO L87 Difference]: Start difference. First operand 241 states and 301 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-13 23:33:51,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:51,673 INFO L93 Difference]: Finished difference Result 297 states and 371 transitions. [2024-11-13 23:33:51,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 23:33:51,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 48 [2024-11-13 23:33:51,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:51,676 INFO L225 Difference]: With dead ends: 297 [2024-11-13 23:33:51,676 INFO L226 Difference]: Without dead ends: 294 [2024-11-13 23:33:51,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:33:51,677 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 63 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:51,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 124 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:33:51,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-13 23:33:51,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 236. [2024-11-13 23:33:51,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 179 states have (on average 1.2458100558659218) internal successors, (223), 182 states have internal predecessors, (223), 30 states have call successors, (30), 24 states have call predecessors, (30), 24 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 23:33:51,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 283 transitions. [2024-11-13 23:33:51,732 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 283 transitions. Word has length 48 [2024-11-13 23:33:51,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:51,732 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 283 transitions. [2024-11-13 23:33:51,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-13 23:33:51,733 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 283 transitions. [2024-11-13 23:33:51,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 23:33:51,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:51,734 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:51,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 23:33:51,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:51,935 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:33:51,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:51,935 INFO L85 PathProgramCache]: Analyzing trace with hash 327415635, now seen corresponding path program 1 times [2024-11-13 23:33:51,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:51,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856560792] [2024-11-13 23:33:51,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:51,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:33:52,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:52,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856560792] [2024-11-13 23:33:52,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856560792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:33:52,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095371607] [2024-11-13 23:33:52,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:52,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:52,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:52,146 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:52,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:33:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:52,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:33:52,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:33:52,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:33:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:33:52,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095371607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:33:52,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [302837513] [2024-11-13 23:33:52,695 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-13 23:33:52,695 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:33:52,695 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:33:52,696 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:33:52,696 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:33:54,605 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:33:54,606 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:33:54,607 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:34:00,869 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7120#(and (<= 1 |#StackHeapBarrier|) (<= 0 ~counter~0) (= |ULTIMATE.start_main_~v~0#1| 0))' at error location [2024-11-13 23:34:00,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:34:00,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:34:00,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-11-13 23:34:00,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764934584] [2024-11-13 23:34:00,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:00,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-13 23:34:00,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:00,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-13 23:34:00,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=445, Invalid=2525, Unknown=0, NotChecked=0, Total=2970 [2024-11-13 23:34:00,872 INFO L87 Difference]: Start difference. First operand 236 states and 283 transitions. Second operand has 31 states, 30 states have (on average 2.566666666666667) internal successors, (77), 31 states have internal predecessors, (77), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-13 23:34:02,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:02,020 INFO L93 Difference]: Finished difference Result 270 states and 325 transitions. [2024-11-13 23:34:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-13 23:34:02,020 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.566666666666667) internal successors, (77), 31 states have internal predecessors, (77), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) Word has length 49 [2024-11-13 23:34:02,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:02,025 INFO L225 Difference]: With dead ends: 270 [2024-11-13 23:34:02,025 INFO L226 Difference]: Without dead ends: 269 [2024-11-13 23:34:02,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 101 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2546 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=978, Invalid=6162, Unknown=0, NotChecked=0, Total=7140 [2024-11-13 23:34:02,028 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 156 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:02,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 249 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 23:34:02,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-13 23:34:02,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 247. [2024-11-13 23:34:02,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 188 states have (on average 1.2393617021276595) internal successors, (233), 191 states have internal predecessors, (233), 31 states have call successors, (31), 25 states have call predecessors, (31), 25 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-13 23:34:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 295 transitions. [2024-11-13 23:34:02,078 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 295 transitions. Word has length 49 [2024-11-13 23:34:02,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:02,079 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 295 transitions. [2024-11-13 23:34:02,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.566666666666667) internal successors, (77), 31 states have internal predecessors, (77), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-13 23:34:02,080 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 295 transitions. [2024-11-13 23:34:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 23:34:02,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:02,081 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:02,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 23:34:02,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:02,285 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:34:02,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash 938138292, now seen corresponding path program 1 times [2024-11-13 23:34:02,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:02,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371968185] [2024-11-13 23:34:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:02,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:34:02,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:02,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371968185] [2024-11-13 23:34:02,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371968185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:02,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972378737] [2024-11-13 23:34:02,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:02,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:02,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:02,543 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:02,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 23:34:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:02,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 23:34:02,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:34:02,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:34:02,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972378737] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:02,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1412001419] [2024-11-13 23:34:02,965 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-13 23:34:02,966 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:34:02,967 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:34:02,967 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:34:02,967 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:04,739 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 118 for LOIs [2024-11-13 23:34:04,794 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:34:04,796 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:34:07,719 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8286#(and (<= 1 |#StackHeapBarrier|) (= ~counter~0 2147483647))' at error location [2024-11-13 23:34:07,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:34:07,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:34:07,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 15 [2024-11-13 23:34:07,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742446100] [2024-11-13 23:34:07,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:07,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 23:34:07,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:07,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 23:34:07,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1124, Unknown=0, NotChecked=0, Total=1332 [2024-11-13 23:34:07,721 INFO L87 Difference]: Start difference. First operand 247 states and 295 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-13 23:34:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:08,114 INFO L93 Difference]: Finished difference Result 380 states and 457 transitions. [2024-11-13 23:34:08,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 23:34:08,115 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 53 [2024-11-13 23:34:08,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:08,117 INFO L225 Difference]: With dead ends: 380 [2024-11-13 23:34:08,117 INFO L226 Difference]: Without dead ends: 247 [2024-11-13 23:34:08,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 123 SyntacticMatches, 12 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=290, Invalid=1690, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 23:34:08,121 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 35 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:08,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 201 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:34:08,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-13 23:34:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2024-11-13 23:34:08,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 188 states have (on average 1.2340425531914894) internal successors, (232), 191 states have internal predecessors, (232), 31 states have call successors, (31), 25 states have call predecessors, (31), 25 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-13 23:34:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 294 transitions. [2024-11-13 23:34:08,165 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 294 transitions. Word has length 53 [2024-11-13 23:34:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:08,166 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 294 transitions. [2024-11-13 23:34:08,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-13 23:34:08,166 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 294 transitions. [2024-11-13 23:34:08,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 23:34:08,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:08,167 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:08,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 23:34:08,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 23:34:08,367 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:34:08,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:08,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1976419485, now seen corresponding path program 1 times [2024-11-13 23:34:08,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:08,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647215299] [2024-11-13 23:34:08,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:08,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:34:08,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:08,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647215299] [2024-11-13 23:34:08,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647215299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:08,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535716682] [2024-11-13 23:34:08,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:08,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:08,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:08,639 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:08,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 23:34:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:08,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 23:34:08,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:34:08,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:34:09,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535716682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:09,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [912443454] [2024-11-13 23:34:09,202 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-13 23:34:09,202 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:34:09,202 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:34:09,202 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:34:09,202 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:10,343 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 118 for LOIs [2024-11-13 23:34:10,417 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:34:10,418 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:34:13,871 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9616#(and (<= 1 |#StackHeapBarrier|) (<= 2147483647 ~counter~0) (<= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296)))' at error location [2024-11-13 23:34:13,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:34:13,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:34:13,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 35 [2024-11-13 23:34:13,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734646300] [2024-11-13 23:34:13,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:13,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-13 23:34:13,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:13,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-13 23:34:13,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=570, Invalid=2736, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 23:34:13,873 INFO L87 Difference]: Start difference. First operand 247 states and 294 transitions. Second operand has 36 states, 35 states have (on average 2.657142857142857) internal successors, (93), 36 states have internal predecessors, (93), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-13 23:34:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:15,568 INFO L93 Difference]: Finished difference Result 467 states and 578 transitions. [2024-11-13 23:34:15,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-13 23:34:15,569 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.657142857142857) internal successors, (93), 36 states have internal predecessors, (93), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) Word has length 57 [2024-11-13 23:34:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:15,572 INFO L225 Difference]: With dead ends: 467 [2024-11-13 23:34:15,572 INFO L226 Difference]: Without dead ends: 465 [2024-11-13 23:34:15,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3296 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1586, Invalid=8314, Unknown=0, NotChecked=0, Total=9900 [2024-11-13 23:34:15,575 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 252 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:15,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 197 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 23:34:15,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-13 23:34:15,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 386. [2024-11-13 23:34:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 293 states have (on average 1.266211604095563) internal successors, (371), 296 states have internal predecessors, (371), 48 states have call successors, (48), 42 states have call predecessors, (48), 42 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 23:34:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 467 transitions. [2024-11-13 23:34:15,624 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 467 transitions. Word has length 57 [2024-11-13 23:34:15,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:15,625 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 467 transitions. [2024-11-13 23:34:15,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.657142857142857) internal successors, (93), 36 states have internal predecessors, (93), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-13 23:34:15,625 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 467 transitions. [2024-11-13 23:34:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 23:34:15,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:15,626 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:15,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 23:34:15,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 23:34:15,831 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:34:15,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:15,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1714975190, now seen corresponding path program 2 times [2024-11-13 23:34:15,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:15,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273148473] [2024-11-13 23:34:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:15,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:34:16,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:16,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273148473] [2024-11-13 23:34:16,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273148473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:16,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943907937] [2024-11-13 23:34:16,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:34:16,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:16,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:16,125 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:16,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 23:34:16,185 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 23:34:16,185 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:34:16,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:34:16,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-13 23:34:16,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:34:16,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943907937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:34:16,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:34:16,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 17 [2024-11-13 23:34:16,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704818128] [2024-11-13 23:34:16,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:34:16,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:34:16,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:16,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:34:16,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-13 23:34:16,231 INFO L87 Difference]: Start difference. First operand 386 states and 467 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 23:34:16,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:16,471 INFO L93 Difference]: Finished difference Result 447 states and 535 transitions. [2024-11-13 23:34:16,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:34:16,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2024-11-13 23:34:16,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:16,474 INFO L225 Difference]: With dead ends: 447 [2024-11-13 23:34:16,474 INFO L226 Difference]: Without dead ends: 442 [2024-11-13 23:34:16,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-13 23:34:16,475 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 43 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:16,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 104 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:34:16,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-13 23:34:16,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 395. [2024-11-13 23:34:16,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 300 states have (on average 1.2566666666666666) internal successors, (377), 304 states have internal predecessors, (377), 49 states have call successors, (49), 43 states have call predecessors, (49), 43 states have return successors, (49), 47 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-13 23:34:16,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 475 transitions. [2024-11-13 23:34:16,540 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 475 transitions. Word has length 61 [2024-11-13 23:34:16,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:16,540 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 475 transitions. [2024-11-13 23:34:16,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 23:34:16,540 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 475 transitions. [2024-11-13 23:34:16,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:34:16,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:16,544 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:16,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 23:34:16,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 23:34:16,744 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:34:16,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:16,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2021363183, now seen corresponding path program 1 times [2024-11-13 23:34:16,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:16,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181112810] [2024-11-13 23:34:16,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:16,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:34:17,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:17,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181112810] [2024-11-13 23:34:17,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181112810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:17,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650141127] [2024-11-13 23:34:17,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:17,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:17,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:17,093 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:17,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 23:34:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:17,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 23:34:17,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:17,415 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 72 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:34:17,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:17,868 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 52 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:34:17,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650141127] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:17,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [974945084] [2024-11-13 23:34:17,870 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-13 23:34:17,870 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:34:17,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:34:17,871 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:34:17,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:21,800 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 13 for LOIs [2024-11-13 23:34:21,801 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:34:21,802 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:34:30,740 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12849#(and (<= 1 |#StackHeapBarrier|) (<= 0 ~counter~0) (<= ~counter~0 2147483647))' at error location [2024-11-13 23:34:30,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:34:30,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:34:30,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 16] total 44 [2024-11-13 23:34:30,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681952897] [2024-11-13 23:34:30,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:30,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-13 23:34:30,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:30,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-13 23:34:30,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=655, Invalid=4037, Unknown=0, NotChecked=0, Total=4692 [2024-11-13 23:34:30,743 INFO L87 Difference]: Start difference. First operand 395 states and 475 transitions. Second operand has 45 states, 44 states have (on average 2.590909090909091) internal successors, (114), 45 states have internal predecessors, (114), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-13 23:34:33,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:33,229 INFO L93 Difference]: Finished difference Result 629 states and 750 transitions. [2024-11-13 23:34:33,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-13 23:34:33,230 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.590909090909091) internal successors, (114), 45 states have internal predecessors, (114), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) Word has length 65 [2024-11-13 23:34:33,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:33,234 INFO L225 Difference]: With dead ends: 629 [2024-11-13 23:34:33,235 INFO L226 Difference]: Without dead ends: 626 [2024-11-13 23:34:33,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 142 SyntacticMatches, 2 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4817 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=2141, Invalid=12621, Unknown=0, NotChecked=0, Total=14762 [2024-11-13 23:34:33,240 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 314 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:33,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 270 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:34:33,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-13 23:34:33,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 385. [2024-11-13 23:34:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 292 states have (on average 1.2636986301369864) internal successors, (369), 296 states have internal predecessors, (369), 48 states have call successors, (48), 42 states have call predecessors, (48), 42 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 23:34:33,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 465 transitions. [2024-11-13 23:34:33,311 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 465 transitions. Word has length 65 [2024-11-13 23:34:33,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:33,311 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 465 transitions. [2024-11-13 23:34:33,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.590909090909091) internal successors, (114), 45 states have internal predecessors, (114), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-13 23:34:33,311 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 465 transitions. [2024-11-13 23:34:33,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-13 23:34:33,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:33,313 INFO L215 NwaCegarLoop]: trace histogram [7, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:33,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 23:34:33,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 23:34:33,540 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:34:33,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:33,540 INFO L85 PathProgramCache]: Analyzing trace with hash 655801391, now seen corresponding path program 1 times [2024-11-13 23:34:33,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:33,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113912668] [2024-11-13 23:34:33,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:33,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-13 23:34:33,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:33,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113912668] [2024-11-13 23:34:33,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113912668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:33,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182505329] [2024-11-13 23:34:33,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:33,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:33,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:33,883 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:33,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 23:34:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:33,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:34:33,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:34,102 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 23:34:34,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-13 23:34:34,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182505329] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:34,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [718127401] [2024-11-13 23:34:34,288 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-13 23:34:34,288 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:34:34,288 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:34:34,289 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:34:34,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:36,001 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 79 for LOIs [2024-11-13 23:34:36,014 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:34:36,015 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:34:45,157 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14913#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_#t~post8#1_55| Int)) (and (= (mod (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) 4294967296) (mod (+ (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~x~0#1|)) 4294967296)) (<= 2147483647 |v_ULTIMATE.start_main_#t~post8#1_55|) (= ~counter~0 |v_ULTIMATE.start_main_#t~post8#1_55|) (<= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296)))))' at error location [2024-11-13 23:34:45,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:34:45,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:34:45,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 17 [2024-11-13 23:34:45,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535339407] [2024-11-13 23:34:45,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:45,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 23:34:45,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 23:34:45,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1410, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 23:34:45,159 INFO L87 Difference]: Start difference. First operand 385 states and 465 transitions. Second operand has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 8 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-13 23:34:45,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:45,847 INFO L93 Difference]: Finished difference Result 763 states and 925 transitions. [2024-11-13 23:34:45,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 23:34:45,847 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 8 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 73 [2024-11-13 23:34:45,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:45,850 INFO L225 Difference]: With dead ends: 763 [2024-11-13 23:34:45,851 INFO L226 Difference]: Without dead ends: 566 [2024-11-13 23:34:45,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 176 SyntacticMatches, 17 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1243 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=355, Invalid=2507, Unknown=0, NotChecked=0, Total=2862 [2024-11-13 23:34:45,852 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 67 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:45,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 303 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 23:34:45,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-13 23:34:45,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 536. [2024-11-13 23:34:45,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 409 states have (on average 1.2811735941320292) internal successors, (524), 413 states have internal predecessors, (524), 65 states have call successors, (65), 59 states have call predecessors, (65), 59 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-13 23:34:45,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 654 transitions. [2024-11-13 23:34:45,940 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 654 transitions. Word has length 73 [2024-11-13 23:34:45,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:45,940 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 654 transitions. [2024-11-13 23:34:45,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 8 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-13 23:34:45,940 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 654 transitions. [2024-11-13 23:34:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-13 23:34:45,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:45,945 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 6, 6, 6, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:45,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 23:34:46,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 23:34:46,149 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:34:46,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:46,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1074353813, now seen corresponding path program 2 times [2024-11-13 23:34:46,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:46,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832988981] [2024-11-13 23:34:46,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:46,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:46,278 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-13 23:34:46,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:46,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832988981] [2024-11-13 23:34:46,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832988981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:46,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876073135] [2024-11-13 23:34:46,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:34:46,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:46,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:46,282 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:46,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 23:34:46,352 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 23:34:46,353 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:34:46,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:34:46,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-13 23:34:46,375 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:34:46,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876073135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:34:46,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:34:46,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2024-11-13 23:34:46,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412498036] [2024-11-13 23:34:46,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:34:46,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:34:46,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:46,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:34:46,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:34:46,377 INFO L87 Difference]: Start difference. First operand 536 states and 654 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:34:46,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:46,550 INFO L93 Difference]: Finished difference Result 556 states and 675 transitions. [2024-11-13 23:34:46,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:34:46,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2024-11-13 23:34:46,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:46,554 INFO L225 Difference]: With dead ends: 556 [2024-11-13 23:34:46,554 INFO L226 Difference]: Without dead ends: 555 [2024-11-13 23:34:46,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-13 23:34:46,555 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 18 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:46,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 95 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:34:46,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-13 23:34:46,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 536. [2024-11-13 23:34:46,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 409 states have (on average 1.273838630806846) internal successors, (521), 413 states have internal predecessors, (521), 65 states have call successors, (65), 59 states have call predecessors, (65), 59 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-13 23:34:46,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 651 transitions. [2024-11-13 23:34:46,635 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 651 transitions. Word has length 81 [2024-11-13 23:34:46,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:46,636 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 651 transitions. [2024-11-13 23:34:46,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:34:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 651 transitions. [2024-11-13 23:34:46,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 23:34:46,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:46,637 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:46,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 23:34:46,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 23:34:46,838 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:34:46,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:46,839 INFO L85 PathProgramCache]: Analyzing trace with hash -674585592, now seen corresponding path program 1 times [2024-11-13 23:34:46,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:46,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705229459] [2024-11-13 23:34:46,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:46,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-13 23:34:46,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:46,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705229459] [2024-11-13 23:34:46,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705229459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:46,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318814718] [2024-11-13 23:34:46,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:46,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:46,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:46,980 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:46,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 23:34:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:47,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:34:47,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:47,365 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 146 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 23:34:47,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:47,633 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-13 23:34:47,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318814718] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:47,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1739223535] [2024-11-13 23:34:47,635 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-13 23:34:47,635 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:34:47,636 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:34:47,636 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:34:47,636 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:49,344 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2024-11-13 23:34:49,346 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:34:49,348 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:35:02,268 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19262#(and (<= 1 |#StackHeapBarrier|) (<= 0 ~counter~0) (<= ~counter~0 2147483647) (= |ULTIMATE.start_main_~v~0#1| 0))' at error location [2024-11-13 23:35:02,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:35:02,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:35:02,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 14] total 19 [2024-11-13 23:35:02,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507308610] [2024-11-13 23:35:02,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:35:02,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 23:35:02,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:02,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 23:35:02,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1582, Unknown=0, NotChecked=0, Total=1806 [2024-11-13 23:35:02,270 INFO L87 Difference]: Start difference. First operand 536 states and 651 transitions. Second operand has 19 states, 19 states have (on average 4.0) internal successors, (76), 19 states have internal predecessors, (76), 9 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-13 23:35:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:03,350 INFO L93 Difference]: Finished difference Result 803 states and 975 transitions. [2024-11-13 23:35:03,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 23:35:03,351 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 19 states have internal predecessors, (76), 9 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 85 [2024-11-13 23:35:03,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:03,355 INFO L225 Difference]: With dead ends: 803 [2024-11-13 23:35:03,355 INFO L226 Difference]: Without dead ends: 606 [2024-11-13 23:35:03,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 202 SyntacticMatches, 19 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1556 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=574, Invalid=3982, Unknown=0, NotChecked=0, Total=4556 [2024-11-13 23:35:03,357 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 84 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:03,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 271 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 23:35:03,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-13 23:35:03,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 448. [2024-11-13 23:35:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 343 states have (on average 1.2653061224489797) internal successors, (434), 348 states have internal predecessors, (434), 54 states have call successors, (54), 48 states have call predecessors, (54), 48 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-13 23:35:03,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 542 transitions. [2024-11-13 23:35:03,433 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 542 transitions. Word has length 85 [2024-11-13 23:35:03,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:03,433 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 542 transitions. [2024-11-13 23:35:03,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 19 states have internal predecessors, (76), 9 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-13 23:35:03,434 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 542 transitions. [2024-11-13 23:35:03,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-13 23:35:03,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:03,436 INFO L215 NwaCegarLoop]: trace histogram [15, 12, 12, 11, 11, 11, 11, 10, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:03,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-13 23:35:03,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:03,641 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:35:03,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:03,641 INFO L85 PathProgramCache]: Analyzing trace with hash 981984077, now seen corresponding path program 1 times [2024-11-13 23:35:03,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:03,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761570914] [2024-11-13 23:35:03,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:03,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:03,853 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 114 proven. 6 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-11-13 23:35:03,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:03,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761570914] [2024-11-13 23:35:03,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761570914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:35:03,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992751063] [2024-11-13 23:35:03,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:03,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:03,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:03,856 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:35:03,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 23:35:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:03,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:35:03,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:35:04,235 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 233 proven. 1 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-13 23:35:04,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:35:04,489 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 113 proven. 1 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-13 23:35:04,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992751063] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:35:04,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [514847022] [2024-11-13 23:35:04,492 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-13 23:35:04,492 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:35:04,492 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:35:04,493 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:35:04,493 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:35:05,872 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-13 23:35:05,873 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:35:05,874 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:35:12,778 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22009#(and (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0))' at error location [2024-11-13 23:35:12,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:35:12,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:35:12,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 14] total 19 [2024-11-13 23:35:12,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284502967] [2024-11-13 23:35:12,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:35:12,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 23:35:12,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:12,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 23:35:12,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1492, Unknown=0, NotChecked=0, Total=1722 [2024-11-13 23:35:12,780 INFO L87 Difference]: Start difference. First operand 448 states and 542 transitions. Second operand has 19 states, 19 states have (on average 4.0) internal successors, (76), 19 states have internal predecessors, (76), 10 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-13 23:35:13,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:13,646 INFO L93 Difference]: Finished difference Result 776 states and 939 transitions. [2024-11-13 23:35:13,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 23:35:13,647 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 19 states have internal predecessors, (76), 10 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 137 [2024-11-13 23:35:13,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:13,649 INFO L225 Difference]: With dead ends: 776 [2024-11-13 23:35:13,649 INFO L226 Difference]: Without dead ends: 373 [2024-11-13 23:35:13,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 362 SyntacticMatches, 13 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=457, Invalid=3325, Unknown=0, NotChecked=0, Total=3782 [2024-11-13 23:35:13,651 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 83 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:13,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 182 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 23:35:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-13 23:35:13,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 245. [2024-11-13 23:35:13,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 184 states have (on average 1.2608695652173914) internal successors, (232), 185 states have internal predecessors, (232), 31 states have call successors, (31), 28 states have call predecessors, (31), 28 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-13 23:35:13,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 294 transitions. [2024-11-13 23:35:13,706 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 294 transitions. Word has length 137 [2024-11-13 23:35:13,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:13,706 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 294 transitions. [2024-11-13 23:35:13,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 19 states have internal predecessors, (76), 10 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-13 23:35:13,707 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 294 transitions. [2024-11-13 23:35:13,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 23:35:13,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:13,709 INFO L215 NwaCegarLoop]: trace histogram [15, 13, 13, 13, 12, 12, 12, 11, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:13,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-13 23:35:13,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:13,910 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:35:13,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:13,910 INFO L85 PathProgramCache]: Analyzing trace with hash 410004878, now seen corresponding path program 1 times [2024-11-13 23:35:13,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:13,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721138894] [2024-11-13 23:35:13,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:13,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:14,033 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-13 23:35:14,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:14,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721138894] [2024-11-13 23:35:14,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721138894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:35:14,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:35:14,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:35:14,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382468229] [2024-11-13 23:35:14,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:14,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:35:14,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:14,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:35:14,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:35:14,036 INFO L87 Difference]: Start difference. First operand 245 states and 294 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 23:35:14,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:14,189 INFO L93 Difference]: Finished difference Result 378 states and 455 transitions. [2024-11-13 23:35:14,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:35:14,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 141 [2024-11-13 23:35:14,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:14,192 INFO L225 Difference]: With dead ends: 378 [2024-11-13 23:35:14,192 INFO L226 Difference]: Without dead ends: 241 [2024-11-13 23:35:14,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:35:14,193 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 11 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:14,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 94 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:35:14,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-13 23:35:14,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 157. [2024-11-13 23:35:14,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 116 states have (on average 1.1293103448275863) internal successors, (131), 117 states have internal predecessors, (131), 21 states have call successors, (21), 18 states have call predecessors, (21), 18 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 23:35:14,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2024-11-13 23:35:14,243 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 141 [2024-11-13 23:35:14,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:14,244 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 173 transitions. [2024-11-13 23:35:14,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 23:35:14,244 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 173 transitions. [2024-11-13 23:35:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 23:35:14,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:14,246 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:14,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 23:35:14,246 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:35:14,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash -883441460, now seen corresponding path program 2 times [2024-11-13 23:35:14,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:14,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301444625] [2024-11-13 23:35:14,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:14,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 94 proven. 1 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-13 23:35:14,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:14,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301444625] [2024-11-13 23:35:14,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301444625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:35:14,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445211182] [2024-11-13 23:35:14,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:35:14,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:14,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:14,465 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:35:14,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 23:35:14,541 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 23:35:14,541 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:35:14,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:35:14,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:35:14,572 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 122 proven. 1 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2024-11-13 23:35:14,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:35:14,730 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 94 proven. 1 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-13 23:35:14,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445211182] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:35:14,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [878423620] [2024-11-13 23:35:14,733 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-13 23:35:14,736 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:35:14,737 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:35:14,737 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:35:14,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:35:16,136 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 118 for LOIs [2024-11-13 23:35:16,209 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:35:16,210 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:35:19,040 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25221#(and (<= 1 |#StackHeapBarrier|) (= ~counter~0 2147483647))' at error location [2024-11-13 23:35:19,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:35:19,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:35:19,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-13 23:35:19,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50284845] [2024-11-13 23:35:19,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:35:19,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 23:35:19,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:19,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 23:35:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=930, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 23:35:19,041 INFO L87 Difference]: Start difference. First operand 157 states and 173 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-13 23:35:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:19,218 INFO L93 Difference]: Finished difference Result 172 states and 190 transitions. [2024-11-13 23:35:19,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:35:19,219 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 141 [2024-11-13 23:35:19,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:19,221 INFO L225 Difference]: With dead ends: 172 [2024-11-13 23:35:19,221 INFO L226 Difference]: Without dead ends: 171 [2024-11-13 23:35:19,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 393 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=228, Invalid=1178, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:35:19,223 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 44 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:19,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 128 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:35:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-13 23:35:19,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 156. [2024-11-13 23:35:19,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 116 states have (on average 1.1206896551724137) internal successors, (130), 116 states have internal predecessors, (130), 21 states have call successors, (21), 18 states have call predecessors, (21), 18 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 23:35:19,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 172 transitions. [2024-11-13 23:35:19,255 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 172 transitions. Word has length 141 [2024-11-13 23:35:19,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:19,255 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 172 transitions. [2024-11-13 23:35:19,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-13 23:35:19,255 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 172 transitions. [2024-11-13 23:35:19,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-13 23:35:19,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:19,257 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:19,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 23:35:19,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-13 23:35:19,458 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:35:19,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:19,458 INFO L85 PathProgramCache]: Analyzing trace with hash -455402817, now seen corresponding path program 2 times [2024-11-13 23:35:19,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:19,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217561638] [2024-11-13 23:35:19,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:19,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 97 proven. 1 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-13 23:35:19,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:19,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217561638] [2024-11-13 23:35:19,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217561638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:35:19,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084069545] [2024-11-13 23:35:19,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:35:19,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:19,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:19,666 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:35:19,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 23:35:19,743 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 23:35:19,743 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:35:19,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:35:19,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:35:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 125 proven. 1 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2024-11-13 23:35:19,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:35:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 97 proven. 1 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-13 23:35:20,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084069545] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:35:20,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1656625273] [2024-11-13 23:35:20,013 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-13 23:35:20,013 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:35:20,013 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:35:20,014 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:35:20,014 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:35:22,343 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 13 for LOIs [2024-11-13 23:35:22,345 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-13 23:35:22,347 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:35:28,356 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26619#(and (<= 1 |#StackHeapBarrier|) (= ~counter~0 2147483647))' at error location [2024-11-13 23:35:28,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:35:28,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:35:28,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-13 23:35:28,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534437782] [2024-11-13 23:35:28,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:35:28,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 23:35:28,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:28,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 23:35:28,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1293, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 23:35:28,358 INFO L87 Difference]: Start difference. First operand 156 states and 172 transitions. Second operand has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 16 states have internal predecessors, (43), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-13 23:35:28,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:28,771 INFO L93 Difference]: Finished difference Result 191 states and 211 transitions. [2024-11-13 23:35:28,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 23:35:28,772 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 16 states have internal predecessors, (43), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 145 [2024-11-13 23:35:28,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:28,773 INFO L225 Difference]: With dead ends: 191 [2024-11-13 23:35:28,773 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 23:35:28,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 400 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=305, Invalid=2245, Unknown=0, NotChecked=0, Total=2550 [2024-11-13 23:35:28,774 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 70 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:28,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 134 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:35:28,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 23:35:28,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 23:35:28,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:35:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 23:35:28,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2024-11-13 23:35:28,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:28,776 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 23:35:28,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 16 states have internal predecessors, (43), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-13 23:35:28,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 23:35:28,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 23:35:28,779 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-13 23:35:28,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-13 23:35:28,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-13 23:35:28,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-13 23:35:28,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-13 23:35:28,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-13 23:35:28,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 23:35:28,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-13 23:35:28,983 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:28,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 23:35:33,230 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:35:33,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:35:33,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:35:33,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:35:33,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:35:33,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:35:33,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,247 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,247 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:35:33,247 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:35:33,247 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,247 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,247 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,247 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,248 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,248 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,248 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,248 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,248 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,248 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,249 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,249 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,249 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,249 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,249 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,249 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,249 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,249 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-13 23:35:33,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-13 23:35:33,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:35:33,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:35:33,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:35:33,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:35:33,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:35:33,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,264 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:35:33,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:35:33,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-13 23:35:33,267 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:35:33,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:35:33,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:35:33,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:35:33,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:35:33,269 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,269 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,269 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,269 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:35:33,269 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:35:33,269 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,269 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,271 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:35:33,272 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-13 23:35:33,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:35:33 BoogieIcfgContainer [2024-11-13 23:35:33,276 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:35:33,276 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:35:33,277 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:35:33,277 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:35:33,277 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:32:22" (3/4) ... [2024-11-13 23:35:33,280 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 23:35:33,284 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-13 23:35:33,284 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-13 23:35:33,288 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-13 23:35:33,289 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-13 23:35:33,290 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 23:35:33,290 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:35:33,290 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:35:33,394 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-13 23:35:33,395 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-13 23:35:33,395 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:35:33,397 INFO L158 Benchmark]: Toolchain (without parser) took 191836.40ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 91.7MB in the beginning and 471.1MB in the end (delta: -379.4MB). Peak memory consumption was 630.8MB. Max. memory is 16.1GB. [2024-11-13 23:35:33,397 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:35:33,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.69ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 80.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:33,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.29ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:35:33,399 INFO L158 Benchmark]: Boogie Preprocessor took 37.02ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 78.1MB in the end (delta: 600.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:33,399 INFO L158 Benchmark]: RCFGBuilder took 434.64ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 64.2MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:33,401 INFO L158 Benchmark]: TraceAbstraction took 190894.84ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 63.7MB in the beginning and 475.3MB in the end (delta: -411.6MB). Peak memory consumption was 657.3MB. Max. memory is 16.1GB. [2024-11-13 23:35:33,402 INFO L158 Benchmark]: Witness Printer took 118.98ms. Allocated memory is still 1.1GB. Free memory was 475.3MB in the beginning and 471.1MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:35:33,403 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.69ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 80.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.29ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.02ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 78.1MB in the end (delta: 600.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 434.64ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 64.2MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 190894.84ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 63.7MB in the beginning and 475.3MB in the end (delta: -411.6MB). Peak memory consumption was 657.3MB. Max. memory is 16.1GB. * Witness Printer took 118.98ms. Allocated memory is still 1.1GB. Free memory was 475.3MB in the beginning and 471.1MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 186.5s, OverallIterations: 23, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 49.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 1804 SdHoareTripleChecker+Valid, 14.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1798 mSDsluCounter, 3985 SdHoareTripleChecker+Invalid, 13.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3306 mSDsCounter, 296 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5757 IncrementalHoareTripleChecker+Invalid, 6054 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 296 mSolverCounterUnsat, 679 mSDtfsCounter, 5757 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3582 GetRequests, 2559 SyntacticMatches, 93 SemanticMatches, 930 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22053 ImplicationChecksByTransitivity, 129.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=536occurred in iteration=17, InterpolantAutomatonStates: 504, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 23 MinimizatonAttempts, 1028 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 2627 NumberOfCodeBlocks, 2329 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 3543 ConstructedInterpolants, 0 QuantifiedInterpolants, 6653 SizeOfPredicates, 113 NumberOfNonLiveVariables, 2374 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 52 InterpolantComputations, 10 PerfectInterpolantSequences, 9349/9939 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 3.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 42, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 72, TOOLS_POST_TIME: 1.0s, TOOLS_POST_CALL_APPLICATIONS: 34, TOOLS_POST_CALL_TIME: 0.6s, TOOLS_POST_RETURN_APPLICATIONS: 28, TOOLS_POST_RETURN_TIME: 0.4s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 134, TOOLS_QUANTIFIERELIM_TIME: 1.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 164, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 40, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 42, DOMAIN_ISBOTTOM_TIME: 0.5s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 2.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 28, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 922, DAG_COMPRESSION_RETAINED_NODES: 115, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((2 <= counter) && (counter <= 6)) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((counter == 3) || (((((((((b <= 65535) && (b == u)) && (b == y)) && (1 <= a)) && (counter == 0)) && (1 <= b)) && (a <= 65535)) && (v == 0)) && (a == x))) || ((4 <= counter) && (counter <= 2147483646))) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((2 <= counter) && (counter <= 5)) || (((y != x) && (1 <= counter)) && (counter <= 5))) - ProcedureContractResult [Line: 11]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: (((cond != 0) && (counter == 0)) && (counter == \old(counter))) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-13 23:35:33,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3776651e-a9a3-4232-b81b-4de8969edcde/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE