./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_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_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/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_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/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_879f9e89-5ee4-4431-bcd7-e6c430dae68e/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 082e5acb2a505af9e43ec1a894890509a127a32d8ecd4c5193a456bddcb0f4a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:15:45,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:15:45,451 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 04:15:45,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:15:45,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:15:45,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:15:45,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:15:45,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:15:45,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:15:45,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:15:45,499 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:15:45,499 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:15:45,499 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:15:45,499 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:15:45,499 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:15:45,499 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:15:45,500 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:15:45,500 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:15:45,500 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:15:45,500 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:15:45,500 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:15:45,500 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:15:45,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:15:45,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:15:45,501 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:15:45,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:15:45,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:15:45,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:15:45,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:15:45,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:15:45,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:15:45,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:15:45,502 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:15:45,502 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:15:45,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:15:45,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:15:45,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:15:45,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:15:45,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:15:45,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:15:45,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:15:45,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:15:45,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:15:45,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:15:45,503 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:15:45,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:15:45,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:15:45,504 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:15:45,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:15:45,504 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_879f9e89-5ee4-4431-bcd7-e6c430dae68e/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 -> 082e5acb2a505af9e43ec1a894890509a127a32d8ecd4c5193a456bddcb0f4a3 [2024-11-14 04:15:45,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:15:45,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:15:45,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:15:45,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:15:45,850 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:15:45,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound5.c Unable to find full path for "g++" [2024-11-14 04:15:47,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:15:47,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:15:47,899 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound5.c [2024-11-14 04:15:47,921 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/data/445930cec/79340afa83e14bb086d77861266f1432/FLAG33c5471e5 [2024-11-14 04:15:47,944 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/data/445930cec/79340afa83e14bb086d77861266f1432 [2024-11-14 04:15:47,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:15:47,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:15:47,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:15:47,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:15:47,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:15:47,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:15:47" (1/1) ... [2024-11-14 04:15:47,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b68aae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:47, skipping insertion in model container [2024-11-14 04:15:47,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:15:47" (1/1) ... [2024-11-14 04:15:47,974 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:15:48,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:15:48,158 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:15:48,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:15:48,193 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:15:48,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48 WrapperNode [2024-11-14 04:15:48,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:15:48,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:15:48,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:15:48,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:15:48,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,233 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-11-14 04:15:48,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:15:48,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:15:48,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:15:48,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:15:48,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:15:48,267 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:15:48,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:15:48,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:15:48,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (1/1) ... [2024-11-14 04:15:48,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:15:48,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:15:48,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:15:48,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:15:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:15:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:15:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:15:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:15:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:15:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:15:48,416 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:15:48,418 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:15:48,596 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-14 04:15:48,596 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:15:48,648 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:15:48,648 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 04:15:48,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:15:48 BoogieIcfgContainer [2024-11-14 04:15:48,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:15:48,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:15:48,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:15:48,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:15:48,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:15:47" (1/3) ... [2024-11-14 04:15:48,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd120d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:15:48, skipping insertion in model container [2024-11-14 04:15:48,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:48" (2/3) ... [2024-11-14 04:15:48,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd120d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:15:48, skipping insertion in model container [2024-11-14 04:15:48,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:15:48" (3/3) ... [2024-11-14 04:15:48,659 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound5.c [2024-11-14 04:15:48,678 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:15:48,681 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-u_unwindbound5.c that has 2 procedures, 26 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-14 04:15:48,746 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:15:48,763 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;@292f24f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:15:48,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-14 04:15:48,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 17 states have internal predecessors, (23), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:15:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 04:15:48,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:15:48,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 04:15:48,776 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:15:48,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:15:48,783 INFO L85 PathProgramCache]: Analyzing trace with hash 132074, now seen corresponding path program 1 times [2024-11-14 04:15:48,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:15:48,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123996804] [2024-11-14 04:15:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:48,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:15:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:15:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:15:49,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:15:49,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123996804] [2024-11-14 04:15:49,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123996804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:15:49,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:15:49,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:15:49,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723977902] [2024-11-14 04:15:49,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:15:49,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:15:49,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:15:49,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:15:49,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:15:49,085 INFO L87 Difference]: Start difference. First operand has 26 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 17 states have internal predecessors, (23), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:15:49,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:15:49,206 INFO L93 Difference]: Finished difference Result 47 states and 65 transitions. [2024-11-14 04:15:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:15:49,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 04:15:49,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:15:49,214 INFO L225 Difference]: With dead ends: 47 [2024-11-14 04:15:49,214 INFO L226 Difference]: Without dead ends: 26 [2024-11-14 04:15:49,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:15:49,224 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:15:49,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 77 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:15:49,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-14 04:15:49,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-14 04:15:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 04:15:49,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-11-14 04:15:49,278 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 3 [2024-11-14 04:15:49,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:15:49,280 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-14 04:15:49,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:15:49,281 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-14 04:15:49,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 04:15:49,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:15:49,283 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:15:49,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:15:49,284 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:15:49,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:15:49,285 INFO L85 PathProgramCache]: Analyzing trace with hash 144187789, now seen corresponding path program 1 times [2024-11-14 04:15:49,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:15:49,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404516396] [2024-11-14 04:15:49,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:49,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:15:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:15:49,635 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:15:49,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:15:49,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404516396] [2024-11-14 04:15:49,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404516396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:15:49,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:15:49,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:15:49,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97886215] [2024-11-14 04:15:49,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:15:49,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:15:49,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:15:49,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:15:49,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:15:49,640 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:15:49,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:15:49,863 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2024-11-14 04:15:49,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:15:49,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2024-11-14 04:15:49,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:15:49,864 INFO L225 Difference]: With dead ends: 46 [2024-11-14 04:15:49,864 INFO L226 Difference]: Without dead ends: 45 [2024-11-14 04:15:49,865 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 [2024-11-14 04:15:49,865 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 22 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:15:49,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 78 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:15:49,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-14 04:15:49,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2024-11-14 04:15:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 26 states have internal predecessors, (31), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:15:49,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2024-11-14 04:15:49,881 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 17 [2024-11-14 04:15:49,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:15:49,881 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2024-11-14 04:15:49,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:15:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2024-11-14 04:15:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 04:15:49,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:15:49,882 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:15:49,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:15:49,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:15:49,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:15:49,884 INFO L85 PathProgramCache]: Analyzing trace with hash 144188975, now seen corresponding path program 1 times [2024-11-14 04:15:49,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:15:49,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102303272] [2024-11-14 04:15:49,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:49,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:15:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:15:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:15:50,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:15:50,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102303272] [2024-11-14 04:15:50,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102303272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:15:50,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801868389] [2024-11-14 04:15:50,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:50,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:15:50,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:15:50,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:15:50,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:15:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:15:50,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:15:50,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:15:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:15:50,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:15:50,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801868389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:15:50,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:15:50,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 04:15:50,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102062308] [2024-11-14 04:15:50,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:15:50,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:15:50,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:15:50,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:15:50,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:15:50,253 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:15:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:15:50,330 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2024-11-14 04:15:50,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:15:50,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2024-11-14 04:15:50,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:15:50,332 INFO L225 Difference]: With dead ends: 51 [2024-11-14 04:15:50,332 INFO L226 Difference]: Without dead ends: 50 [2024-11-14 04:15:50,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:15:50,333 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:15:50,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 59 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:15:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-14 04:15:50,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2024-11-14 04:15:50,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.28) internal successors, (32), 27 states have internal predecessors, (32), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:15:50,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2024-11-14 04:15:50,351 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 17 [2024-11-14 04:15:50,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:15:50,351 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2024-11-14 04:15:50,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:15:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2024-11-14 04:15:50,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 04:15:50,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:15:50,352 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:15:50,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:15:50,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:15:50,553 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:15:50,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:15:50,554 INFO L85 PathProgramCache]: Analyzing trace with hash 174854233, now seen corresponding path program 1 times [2024-11-14 04:15:50,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:15:50,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115485087] [2024-11-14 04:15:50,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:50,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:15:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:15:50,682 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:15:50,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:15:50,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115485087] [2024-11-14 04:15:50,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115485087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:15:50,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:15:50,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:15:50,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703639670] [2024-11-14 04:15:50,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:15:50,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:15:50,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:15:50,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:15:50,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:15:50,684 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:15:50,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:15:50,805 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2024-11-14 04:15:50,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:15:50,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-11-14 04:15:50,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:15:50,807 INFO L225 Difference]: With dead ends: 51 [2024-11-14 04:15:50,807 INFO L226 Difference]: Without dead ends: 50 [2024-11-14 04:15:50,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:15:50,808 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:15:50,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 74 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:15:50,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-14 04:15:50,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2024-11-14 04:15:50,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.25) internal successors, (35), 30 states have internal predecessors, (35), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:15:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2024-11-14 04:15:50,826 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 18 [2024-11-14 04:15:50,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:15:50,826 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2024-11-14 04:15:50,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:15:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2024-11-14 04:15:50,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 04:15:50,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:15:50,829 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:15:50,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:15:50,830 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:15:50,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:15:50,831 INFO L85 PathProgramCache]: Analyzing trace with hash 174890976, now seen corresponding path program 1 times [2024-11-14 04:15:50,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:15:50,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5373137] [2024-11-14 04:15:50,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:50,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:15:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:15:50,995 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:15:50,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:15:50,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5373137] [2024-11-14 04:15:50,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5373137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:15:50,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530289444] [2024-11-14 04:15:50,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:50,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:15:50,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:15:50,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:15:51,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:15:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:15:51,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:15:51,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:15:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:15:51,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:15:51,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530289444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:15:51,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:15:51,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 04:15:51,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160832291] [2024-11-14 04:15:51,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:15:51,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:15:51,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:15:51,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:15:51,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:15:51,134 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:15:51,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:15:51,221 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2024-11-14 04:15:51,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:15:51,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-11-14 04:15:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:15:51,222 INFO L225 Difference]: With dead ends: 50 [2024-11-14 04:15:51,223 INFO L226 Difference]: Without dead ends: 49 [2024-11-14 04:15:51,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:15:51,223 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 9 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:15:51,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 58 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:15:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-14 04:15:51,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2024-11-14 04:15:51,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 29 states have internal predecessors, (34), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:15:51,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2024-11-14 04:15:51,238 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 18 [2024-11-14 04:15:51,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:15:51,238 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2024-11-14 04:15:51,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:15:51,239 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2024-11-14 04:15:51,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 04:15:51,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:15:51,239 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:15:51,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 04:15:51,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:15:51,440 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:15:51,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:15:51,441 INFO L85 PathProgramCache]: Analyzing trace with hash 381786132, now seen corresponding path program 1 times [2024-11-14 04:15:51,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:15:51,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538883637] [2024-11-14 04:15:51,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:51,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:15:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:15:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:15:51,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:15:51,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538883637] [2024-11-14 04:15:51,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538883637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:15:51,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258704785] [2024-11-14 04:15:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:51,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:15:51,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:15:51,544 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:15:51,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:15:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:15:51,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:15:51,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:15:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:15:51,672 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:15:51,778 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:15:51,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258704785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:15:51,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1368658840] [2024-11-14 04:15:51,801 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2024-11-14 04:15:51,801 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:15:51,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:15:51,809 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:15:51,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:15:55,535 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:15:55,538 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:15:57,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1368658840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:15:57,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:15:57,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7, 5, 6] total 23 [2024-11-14 04:15:57,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911064856] [2024-11-14 04:15:57,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:15:57,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 04:15:57,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:15:57,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 04:15:57,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:15:57,346 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 12 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:16:00,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:16:00,091 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2024-11-14 04:16:00,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 04:16:00,093 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-14 04:16:00,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:16:00,094 INFO L225 Difference]: With dead ends: 63 [2024-11-14 04:16:00,094 INFO L226 Difference]: Without dead ends: 62 [2024-11-14 04:16:00,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:16:00,095 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 33 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:16:00,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 85 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 04:16:00,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-14 04:16:00,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 46. [2024-11-14 04:16:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.2) internal successors, (36), 31 states have internal predecessors, (36), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:16:00,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2024-11-14 04:16:00,119 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 21 [2024-11-14 04:16:00,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:16:00,120 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2024-11-14 04:16:00,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:16:00,120 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2024-11-14 04:16:00,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 04:16:00,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:16:00,121 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:16:00,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:16:00,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:16:00,322 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:16:00,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:16:00,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1049531726, now seen corresponding path program 1 times [2024-11-14 04:16:00,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:16:00,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145143098] [2024-11-14 04:16:00,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:00,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:16:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:16:00,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:16:00,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145143098] [2024-11-14 04:16:00,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145143098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:16:00,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834410976] [2024-11-14 04:16:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:00,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:16:00,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:16:00,444 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:16:00,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:16:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:00,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:16:00,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:16:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:16:00,547 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:16:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:16:00,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834410976] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:16:00,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1289721350] [2024-11-14 04:16:00,613 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 04:16:00,614 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:16:00,614 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:16:00,614 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:16:00,614 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:16:02,556 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:16:02,558 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:16:03,913 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1293#(and (<= 1 |#StackHeapBarrier|) (= (mod |ULTIMATE.start_main_~p~0#1| 2) 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= ~counter~0 2147483647) (<= (mod (div |ULTIMATE.start_main_~d~0#1| 2) 4294967296) (mod |ULTIMATE.start_main_~r~0#1| 4294967296)) (= (mod |ULTIMATE.start_main_~d~0#1| 2) 0))' at error location [2024-11-14 04:16:03,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:16:03,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:16:03,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-14 04:16:03,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673074138] [2024-11-14 04:16:03,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:16:03,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:16:03,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:16:03,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:16:03,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-14 04:16:03,915 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:16:04,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:16:04,132 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2024-11-14 04:16:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 04:16:04,133 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 22 [2024-11-14 04:16:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:16:04,133 INFO L225 Difference]: With dead ends: 93 [2024-11-14 04:16:04,133 INFO L226 Difference]: Without dead ends: 80 [2024-11-14 04:16:04,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=164, Invalid=706, Unknown=0, NotChecked=0, Total=870 [2024-11-14 04:16:04,135 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 45 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:16:04,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 98 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:16:04,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-14 04:16:04,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 70. [2024-11-14 04:16:04,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 46 states have (on average 1.173913043478261) internal successors, (54), 47 states have internal predecessors, (54), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:16:04,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2024-11-14 04:16:04,154 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 22 [2024-11-14 04:16:04,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:16:04,154 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2024-11-14 04:16:04,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:16:04,154 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2024-11-14 04:16:04,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 04:16:04,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:16:04,155 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:16:04,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 04:16:04,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:16:04,360 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:16:04,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:16:04,360 INFO L85 PathProgramCache]: Analyzing trace with hash 852945397, now seen corresponding path program 1 times [2024-11-14 04:16:04,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:16:04,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060370314] [2024-11-14 04:16:04,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:04,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:16:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:04,526 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:16:04,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:16:04,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060370314] [2024-11-14 04:16:04,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060370314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:16:04,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524092213] [2024-11-14 04:16:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:04,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:16:04,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:16:04,529 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:16:04,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:16:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:04,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:16:04,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:16:04,679 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 04:16:04,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:16:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:16:04,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524092213] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:16:04,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [187981229] [2024-11-14 04:16:04,795 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-14 04:16:04,795 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:16:04,795 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:16:04,795 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:16:04,795 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:16:05,291 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 13 for LOIs [2024-11-14 04:16:05,293 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:16:05,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [187981229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:16:05,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:16:05,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 6, 6] total 27 [2024-11-14 04:16:05,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127498715] [2024-11-14 04:16:05,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:16:05,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:16:05,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:16:05,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:16:05,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:16:05,927 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-14 04:16:06,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:16:06,155 INFO L93 Difference]: Finished difference Result 77 states and 93 transitions. [2024-11-14 04:16:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:16:06,156 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 29 [2024-11-14 04:16:06,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:16:06,157 INFO L225 Difference]: With dead ends: 77 [2024-11-14 04:16:06,157 INFO L226 Difference]: Without dead ends: 58 [2024-11-14 04:16:06,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:16:06,158 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:16:06,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:16:06,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-14 04:16:06,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-14 04:16:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.162162162162162) internal successors, (43), 38 states have internal predecessors, (43), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 04:16:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 71 transitions. [2024-11-14 04:16:06,177 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 71 transitions. Word has length 29 [2024-11-14 04:16:06,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:16:06,177 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 71 transitions. [2024-11-14 04:16:06,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-14 04:16:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 71 transitions. [2024-11-14 04:16:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 04:16:06,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:16:06,178 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-14 04:16:06,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 04:16:06,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:16:06,379 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:16:06,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:16:06,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1360107758, now seen corresponding path program 1 times [2024-11-14 04:16:06,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:16:06,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649640974] [2024-11-14 04:16:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:06,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:16:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:06,512 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:16:06,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:16:06,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649640974] [2024-11-14 04:16:06,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649640974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:16:06,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72668921] [2024-11-14 04:16:06,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:06,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:16:06,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:16:06,514 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:16:06,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:16:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:06,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:16:06,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:16:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:16:06,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:16:06,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72668921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:16:06,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:16:06,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-14 04:16:06,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685889760] [2024-11-14 04:16:06,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:16:06,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:16:06,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:16:06,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:16:06,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-14 04:16:06,645 INFO L87 Difference]: Start difference. First operand 58 states and 71 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:16:06,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:16:06,719 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2024-11-14 04:16:06,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:16:06,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 31 [2024-11-14 04:16:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:16:06,721 INFO L225 Difference]: With dead ends: 58 [2024-11-14 04:16:06,721 INFO L226 Difference]: Without dead ends: 57 [2024-11-14 04:16:06,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-14 04:16:06,722 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:16:06,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 48 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:16:06,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-14 04:16:06,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2024-11-14 04:16:06,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 04:16:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2024-11-14 04:16:06,738 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 31 [2024-11-14 04:16:06,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:16:06,738 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2024-11-14 04:16:06,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:16:06,739 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2024-11-14 04:16:06,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 04:16:06,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:16:06,740 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-14 04:16:06,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 04:16:06,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:16:06,940 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:16:06,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:16:06,941 INFO L85 PathProgramCache]: Analyzing trace with hash 786332532, now seen corresponding path program 1 times [2024-11-14 04:16:06,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:16:06,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460946315] [2024-11-14 04:16:06,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:06,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:16:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:16:07,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:16:07,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460946315] [2024-11-14 04:16:07,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460946315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:16:07,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444216121] [2024-11-14 04:16:07,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:07,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:16:07,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:16:07,059 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:16:07,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:16:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:07,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:16:07,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:16:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:16:07,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:16:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:16:07,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444216121] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:16:07,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [965288785] [2024-11-14 04:16:07,323 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 04:16:07,323 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:16:07,324 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:16:07,324 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:16:07,324 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:16:08,774 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:16:08,775 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:16:10,157 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2452#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 2147483647 ~counter~0) (<= (+ (mod |ULTIMATE.start_main_~r~0#1| 4294967296) 1) (mod |ULTIMATE.start_main_~d~0#1| 4294967296)))' at error location [2024-11-14 04:16:10,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:16:10,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:16:10,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-14 04:16:10,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826450362] [2024-11-14 04:16:10,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:16:10,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 04:16:10,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:16:10,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 04:16:10,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2024-11-14 04:16:10,159 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand has 19 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 19 states have internal predecessors, (42), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 04:16:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:16:10,541 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2024-11-14 04:16:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-14 04:16:10,542 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 19 states have internal predecessors, (42), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 32 [2024-11-14 04:16:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:16:10,543 INFO L225 Difference]: With dead ends: 80 [2024-11-14 04:16:10,543 INFO L226 Difference]: Without dead ends: 79 [2024-11-14 04:16:10,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=290, Invalid=1350, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 04:16:10,544 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 76 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:16:10,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 76 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:16:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-14 04:16:10,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2024-11-14 04:16:10,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.1) internal successors, (55), 50 states have internal predecessors, (55), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 04:16:10,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2024-11-14 04:16:10,573 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 32 [2024-11-14 04:16:10,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:16:10,575 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2024-11-14 04:16:10,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 19 states have internal predecessors, (42), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 04:16:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2024-11-14 04:16:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 04:16:10,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:16:10,580 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-14 04:16:10,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 04:16:10,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 04:16:10,781 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:16:10,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:16:10,781 INFO L85 PathProgramCache]: Analyzing trace with hash 315054010, now seen corresponding path program 1 times [2024-11-14 04:16:10,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:16:10,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787712386] [2024-11-14 04:16:10,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:10,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:16:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-14 04:16:11,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:16:11,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787712386] [2024-11-14 04:16:11,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787712386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:16:11,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200610334] [2024-11-14 04:16:11,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:11,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:16:11,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:16:11,193 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:16:11,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 04:16:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:11,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:16:11,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:16:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 3 proven. 149 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:16:11,465 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:16:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-14 04:16:11,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200610334] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:16:11,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [514776892] [2024-11-14 04:16:11,770 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-14 04:16:11,770 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:16:11,771 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:16:11,771 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:16:11,771 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:16:21,426 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:16:21,427 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:17:17,670 WARN L286 SmtUtils]: Spent 49.85s on a formula simplification. DAG size of input: 66 DAG size of output: 61 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:18:06,468 WARN L286 SmtUtils]: Spent 42.51s on a formula simplification. DAG size of input: 69 DAG size of output: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:18:07,094 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2725#true' at error location [2024-11-14 04:18:07,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:18:07,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:18:07,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 35 [2024-11-14 04:18:07,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863933729] [2024-11-14 04:18:07,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:18:07,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-14 04:18:07,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:18:07,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-14 04:18:07,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=1884, Unknown=3, NotChecked=0, Total=2256 [2024-11-14 04:18:07,097 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 36 states, 35 states have (on average 2.5714285714285716) internal successors, (90), 36 states have internal predecessors, (90), 14 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-14 04:18:08,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:18:08,606 INFO L93 Difference]: Finished difference Result 182 states and 216 transitions. [2024-11-14 04:18:08,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-14 04:18:08,606 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.5714285714285716) internal successors, (90), 36 states have internal predecessors, (90), 14 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 65 [2024-11-14 04:18:08,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:18:08,608 INFO L225 Difference]: With dead ends: 182 [2024-11-14 04:18:08,608 INFO L226 Difference]: Without dead ends: 181 [2024-11-14 04:18:08,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 157 SyntacticMatches, 4 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1665 ImplicationChecksByTransitivity, 107.1s TimeCoverageRelationStatistics Valid=1136, Invalid=4713, Unknown=3, NotChecked=0, Total=5852 [2024-11-14 04:18:08,611 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 163 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:18:08,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 122 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:18:08,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-14 04:18:08,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 157. [2024-11-14 04:18:08,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 104 states have (on average 1.0480769230769231) internal successors, (109), 104 states have internal predecessors, (109), 36 states have call successors, (36), 16 states have call predecessors, (36), 16 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:18:08,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 181 transitions. [2024-11-14 04:18:08,652 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 181 transitions. Word has length 65 [2024-11-14 04:18:08,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:18:08,652 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 181 transitions. [2024-11-14 04:18:08,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.5714285714285716) internal successors, (90), 36 states have internal predecessors, (90), 14 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-14 04:18:08,653 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 181 transitions. [2024-11-14 04:18:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-14 04:18:08,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:18:08,655 INFO L215 NwaCegarLoop]: trace histogram [27, 10, 10, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2024-11-14 04:18:08,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 04:18:08,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 04:18:08,856 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 04:18:08,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:18:08,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1563435327, now seen corresponding path program 2 times [2024-11-14 04:18:08,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:18:08,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370933685] [2024-11-14 04:18:08,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:18:08,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:18:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:18:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 104 proven. 7 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked. [2024-11-14 04:18:09,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:18:09,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370933685] [2024-11-14 04:18:09,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370933685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:18:09,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924254719] [2024-11-14 04:18:09,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:18:09,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:18:09,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:18:09,219 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:18:09,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 04:18:09,312 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 04:18:09,312 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:18:09,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:18:09,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:18:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2024-11-14 04:18:09,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:18:09,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924254719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:18:09,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:18:09,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2024-11-14 04:18:09,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074496227] [2024-11-14 04:18:09,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:18:09,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:18:09,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:18:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:18:09,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:18:09,346 INFO L87 Difference]: Start difference. First operand 157 states and 181 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-14 04:18:09,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:18:09,431 INFO L93 Difference]: Finished difference Result 165 states and 189 transitions. [2024-11-14 04:18:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:18:09,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 145 [2024-11-14 04:18:09,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:18:09,433 INFO L225 Difference]: With dead ends: 165 [2024-11-14 04:18:09,433 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:18:09,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:18:09,435 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:18:09,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 55 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:18:09,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:18:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:18:09,436 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) [2024-11-14 04:18:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:18:09,436 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2024-11-14 04:18:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:18:09,436 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:18:09,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-14 04:18:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:18:09,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:18:09,440 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-14 04:18:09,440 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-14 04:18:09,440 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-14 04:18:09,440 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-14 04:18:09,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 04:18:09,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 04:18:09,659 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:18:09,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:18:10,861 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:18:10,872 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:18:10,875 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:18:10,876 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:18:10,876 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:18:10,876 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:18:10,876 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:18:10,877 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:18:10,877 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:18:10,877 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:18:10,877 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:18:10,877 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:18:10,877 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:18:10,878 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:18:10,878 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:18:10,878 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:18:10,878 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:18:10,878 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:18:10,878 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:18:10,878 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:18:10,878 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:18:10,879 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:18:10,879 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:18:10,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:18:10 BoogieIcfgContainer [2024-11-14 04:18:10,892 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:18:10,892 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:18:10,892 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:18:10,892 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:18:10,893 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:15:48" (3/4) ... [2024-11-14 04:18:10,894 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:18:10,896 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-14 04:18:10,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-14 04:18:10,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-14 04:18:10,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:18:10,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:18:10,999 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:18:10,999 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:18:10,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:18:11,001 INFO L158 Benchmark]: Toolchain (without parser) took 143051.87ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 119.5MB in the beginning and 498.8MB in the end (delta: -379.3MB). Peak memory consumption was 226.5MB. Max. memory is 16.1GB. [2024-11-14 04:18:11,001 INFO L158 Benchmark]: CDTParser took 0.96ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:18:11,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.29ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 108.5MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:18:11,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.89ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 107.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:18:11,002 INFO L158 Benchmark]: Boogie Preprocessor took 32.56ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 106.3MB in the end (delta: 778.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:18:11,003 INFO L158 Benchmark]: RCFGBuilder took 382.30ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 91.7MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:18:11,003 INFO L158 Benchmark]: TraceAbstraction took 142239.68ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 91.2MB in the beginning and 502.8MB in the end (delta: -411.6MB). Peak memory consumption was 201.3MB. Max. memory is 16.1GB. [2024-11-14 04:18:11,003 INFO L158 Benchmark]: Witness Printer took 107.45ms. Allocated memory is still 755.0MB. Free memory was 502.8MB in the beginning and 498.8MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:18:11,006 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.29ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 108.5MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.89ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 107.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.56ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 106.3MB in the end (delta: 778.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.30ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 91.7MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 142239.68ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 91.2MB in the beginning and 502.8MB in the end (delta: -411.6MB). Peak memory consumption was 201.3MB. Max. memory is 16.1GB. * Witness Printer took 107.45ms. Allocated memory is still 755.0MB. Free memory was 502.8MB in the beginning and 498.8MB in the end (delta: 4.0MB). 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: #StackHeapBarrier - 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: #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: #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: #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[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: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: 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 2 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 140.9s, OverallIterations: 12, TraceHistogramMax: 27, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 402 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 866 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 664 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1425 IncrementalHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 202 mSDtfsCounter, 1425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 857 GetRequests, 585 SyntacticMatches, 18 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3217 ImplicationChecksByTransitivity, 114.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=11, InterpolantAutomatonStates: 151, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 79 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 798 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 941 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 SizeOfPredicates, 29 NumberOfNonLiveVariables, 853 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 26 InterpolantComputations, 7 PerfectInterpolantSequences, 2566/2885 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: 4.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 64, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 49, TOOLS_POST_TIME: 0.9s, TOOLS_POST_CALL_APPLICATIONS: 50, TOOLS_POST_CALL_TIME: 1.3s, TOOLS_POST_RETURN_APPLICATIONS: 42, TOOLS_POST_RETURN_TIME: 0.9s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 139, TOOLS_QUANTIFIERELIM_TIME: 3.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 150, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 64, DOMAIN_JOIN_TIME: 0.9s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 64, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 2.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, CALL_SUMMARIZER_APPLICATIONS: 42, 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: 727, DAG_COMPRESSION_RETAINED_NODES: 129, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((((p % 2) == 0) && ((((4294967295 * ((((long long) -1 * d) / 2) - 1)) % 4294967296) + 4294967296) <= r)) && (1 <= counter)) && (q == 0)) && (counter <= 5)) && ((d % 2) == 0)) || ((((((p == 1) && (1 <= B)) && (B == d)) && (q == 0)) && (counter == 0)) && (A == r))) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((counter <= 6) && (0 <= ((long long) counter + 2147483647))) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: ((((cond != 0) || (5 < counter)) || (((long long) counter + 2147483647) < 0)) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-11-14 04:18:11,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_879f9e89-5ee4-4431-bcd7-e6c430dae68e/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