./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound10.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_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/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_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/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_a60b54d8-4665-4ea6-b422-c92b32be6afd/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 0a6d36c45579adaf3871b264b96aba9fa14294bc645c23d191a4e77c149500df --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:24:10,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:24:10,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:24:10,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:24:10,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:24:10,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:24:10,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:24:10,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:24:10,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:24:10,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:24:10,466 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:24:10,466 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:24:10,467 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:24:10,467 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:24:10,467 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:24:10,467 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:24:10,467 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:24:10,467 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:24:10,467 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:24:10,467 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:24:10,467 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:24:10,468 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:24:10,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:24:10,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:24:10,468 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:24:10,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:24:10,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:24:10,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:24:10,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:24:10,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:24:10,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:24:10,469 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:24:10,469 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:24:10,469 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:24:10,470 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:24:10,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:24:10,471 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:24:10,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:24:10,471 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:24:10,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:24:10,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:10,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:24:10,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:24:10,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:24:10,473 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:24:10,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:24:10,473 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:24:10,473 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:24:10,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:24:10,474 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_a60b54d8-4665-4ea6-b422-c92b32be6afd/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 -> 0a6d36c45579adaf3871b264b96aba9fa14294bc645c23d191a4e77c149500df [2024-11-14 05:24:10,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:24:10,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:24:10,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:24:10,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:24:10,896 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:24:10,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound10.c Unable to find full path for "g++" [2024-11-14 05:24:13,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:24:13,479 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:24:13,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound10.c [2024-11-14 05:24:13,492 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/data/f984fe348/611ae20866db45aea3569de5e2211bd3/FLAGae87970bb [2024-11-14 05:24:13,770 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/data/f984fe348/611ae20866db45aea3569de5e2211bd3 [2024-11-14 05:24:13,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:24:13,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:24:13,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:13,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:24:13,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:24:13,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:13" (1/1) ... [2024-11-14 05:24:13,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481a8382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:13, skipping insertion in model container [2024-11-14 05:24:13,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:13" (1/1) ... [2024-11-14 05:24:13,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:24:14,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:14,107 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:24:14,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:14,176 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:24:14,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14 WrapperNode [2024-11-14 05:24:14,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:14,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:14,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:24:14,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:24:14,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,248 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 123 [2024-11-14 05:24:14,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:14,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:24:14,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:24:14,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:24:14,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:24:14,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:24:14,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:24:14,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:24:14,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (1/1) ... [2024-11-14 05:24:14,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:14,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:14,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:24:14,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:24:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:24:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:24:14,406 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:24:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:24:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:24:14,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:24:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:24:14,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:24:14,493 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:24:14,496 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:24:15,546 INFO L? ?]: Removed 159 outVars from TransFormulas that were not future-live. [2024-11-14 05:24:15,546 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:24:15,603 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:24:15,604 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:24:15,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:15 BoogieIcfgContainer [2024-11-14 05:24:15,604 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:24:15,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:24:15,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:24:15,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:24:15,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:24:13" (1/3) ... [2024-11-14 05:24:15,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c952238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:15, skipping insertion in model container [2024-11-14 05:24:15,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:14" (2/3) ... [2024-11-14 05:24:15,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c952238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:15, skipping insertion in model container [2024-11-14 05:24:15,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:15" (3/3) ... [2024-11-14 05:24:15,618 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_unwindbound10.c [2024-11-14 05:24:15,639 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:24:15,645 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-ll_unwindbound10.c that has 3 procedures, 137 locations, 1 initial locations, 1 loop locations, and 58 error locations. [2024-11-14 05:24:15,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:24:15,747 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;@44710688, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:24:15,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-14 05:24:15,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 67 states have (on average 1.9253731343283582) internal successors, (129), 125 states have internal predecessors, (129), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 05:24:15,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:24:15,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:15,762 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:15,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:15,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:15,768 INFO L85 PathProgramCache]: Analyzing trace with hash 571810943, now seen corresponding path program 1 times [2024-11-14 05:24:15,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:15,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003088915] [2024-11-14 05:24:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:15,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:16,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:24:16,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:16,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003088915] [2024-11-14 05:24:16,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003088915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:16,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:16,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:16,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607125746] [2024-11-14 05:24:16,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:16,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:16,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:16,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:16,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:16,199 INFO L87 Difference]: Start difference. First operand has 137 states, 67 states have (on average 1.9253731343283582) internal successors, (129), 125 states have internal predecessors, (129), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:24:16,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:16,336 INFO L93 Difference]: Finished difference Result 203 states and 217 transitions. [2024-11-14 05:24:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:24:16,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-14 05:24:16,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:16,344 INFO L225 Difference]: With dead ends: 203 [2024-11-14 05:24:16,345 INFO L226 Difference]: Without dead ends: 138 [2024-11-14 05:24:16,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:24:16,351 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 7 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:16,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 407 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:24:16,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-14 05:24:16,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-14 05:24:16,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 70 states have (on average 1.8571428571428572) internal successors, (130), 127 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:24:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 146 transitions. [2024-11-14 05:24:16,416 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 146 transitions. Word has length 10 [2024-11-14 05:24:16,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:16,419 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 146 transitions. [2024-11-14 05:24:16,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:24:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 146 transitions. [2024-11-14 05:24:16,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:24:16,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:16,422 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:16,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:24:16,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:16,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:16,425 INFO L85 PathProgramCache]: Analyzing trace with hash 979549838, now seen corresponding path program 1 times [2024-11-14 05:24:16,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:16,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171478167] [2024-11-14 05:24:16,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:16,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:16,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024639808] [2024-11-14 05:24:16,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:16,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:16,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:16,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:16,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:24:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:16,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:24:16,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:24:16,608 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:16,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:16,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171478167] [2024-11-14 05:24:16,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:16,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024639808] [2024-11-14 05:24:16,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024639808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:16,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:16,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:16,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022503784] [2024-11-14 05:24:16,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:16,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:16,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:16,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:16,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:16,615 INFO L87 Difference]: Start difference. First operand 138 states and 146 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:24:17,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:17,115 INFO L93 Difference]: Finished difference Result 222 states and 269 transitions. [2024-11-14 05:24:17,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:17,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-11-14 05:24:17,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:17,117 INFO L225 Difference]: With dead ends: 222 [2024-11-14 05:24:17,118 INFO L226 Difference]: Without dead ends: 218 [2024-11-14 05:24:17,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:17,123 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 73 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:17,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 151 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:24:17,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-14 05:24:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 176. [2024-11-14 05:24:17,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 103 states have (on average 1.8640776699029127) internal successors, (192), 160 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:24:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 218 transitions. [2024-11-14 05:24:17,167 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 218 transitions. Word has length 13 [2024-11-14 05:24:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:17,167 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 218 transitions. [2024-11-14 05:24:17,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:24:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 218 transitions. [2024-11-14 05:24:17,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 05:24:17,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:17,168 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:17,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:24:17,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:17,376 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:17,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:17,377 INFO L85 PathProgramCache]: Analyzing trace with hash 749558160, now seen corresponding path program 1 times [2024-11-14 05:24:17,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:17,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048629157] [2024-11-14 05:24:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:17,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:17,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580458491] [2024-11-14 05:24:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:17,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:17,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:17,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:17,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:24:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:17,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:24:17,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:24:17,513 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:17,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:17,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048629157] [2024-11-14 05:24:17,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:17,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580458491] [2024-11-14 05:24:17,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580458491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:17,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:17,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:17,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282748435] [2024-11-14 05:24:17,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:17,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:17,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:17,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:17,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:17,517 INFO L87 Difference]: Start difference. First operand 176 states and 218 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:24:18,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:18,005 INFO L93 Difference]: Finished difference Result 282 states and 348 transitions. [2024-11-14 05:24:18,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:18,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-14 05:24:18,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:18,008 INFO L225 Difference]: With dead ends: 282 [2024-11-14 05:24:18,008 INFO L226 Difference]: Without dead ends: 274 [2024-11-14 05:24:18,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:18,009 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 87 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:18,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 205 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:24:18,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-14 05:24:18,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 232. [2024-11-14 05:24:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 153 states have (on average 1.8104575163398693) internal successors, (277), 210 states have internal predecessors, (277), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-14 05:24:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 315 transitions. [2024-11-14 05:24:18,044 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 315 transitions. Word has length 15 [2024-11-14 05:24:18,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:18,047 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 315 transitions. [2024-11-14 05:24:18,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:24:18,047 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 315 transitions. [2024-11-14 05:24:18,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 05:24:18,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:18,048 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:18,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:24:18,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:18,249 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:18,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:18,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1229112174, now seen corresponding path program 1 times [2024-11-14 05:24:18,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:18,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967877491] [2024-11-14 05:24:18,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:18,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:18,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403408304] [2024-11-14 05:24:18,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:18,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:18,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:18,278 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:18,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:24:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:18,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:24:18,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:18,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:24:18,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:18,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:18,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967877491] [2024-11-14 05:24:18,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:18,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403408304] [2024-11-14 05:24:18,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403408304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:18,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:18,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:18,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418489605] [2024-11-14 05:24:18,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:18,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:18,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:18,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:18,509 INFO L87 Difference]: Start difference. First operand 232 states and 315 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:24:19,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:19,032 INFO L93 Difference]: Finished difference Result 268 states and 334 transitions. [2024-11-14 05:24:19,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:19,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-14 05:24:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:19,035 INFO L225 Difference]: With dead ends: 268 [2024-11-14 05:24:19,035 INFO L226 Difference]: Without dead ends: 254 [2024-11-14 05:24:19,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:19,037 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 64 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:19,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 121 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:24:19,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-14 05:24:19,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 198. [2024-11-14 05:24:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 124 states have (on average 1.7338709677419355) internal successors, (215), 181 states have internal predecessors, (215), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:24:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 243 transitions. [2024-11-14 05:24:19,054 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 243 transitions. Word has length 17 [2024-11-14 05:24:19,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:19,055 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 243 transitions. [2024-11-14 05:24:19,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:24:19,055 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 243 transitions. [2024-11-14 05:24:19,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 05:24:19,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:19,056 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:19,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:24:19,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:19,261 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:19,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:19,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1459373003, now seen corresponding path program 1 times [2024-11-14 05:24:19,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:19,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508767979] [2024-11-14 05:24:19,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:19,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:19,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606121460] [2024-11-14 05:24:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:19,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:19,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:19,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:19,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:24:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:19,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:24:19,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:24:19,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:19,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:19,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508767979] [2024-11-14 05:24:19,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:19,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606121460] [2024-11-14 05:24:19,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606121460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:19,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:19,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:19,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123028767] [2024-11-14 05:24:19,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:19,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:19,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:19,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:19,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:19,428 INFO L87 Difference]: Start difference. First operand 198 states and 243 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:19,912 INFO L93 Difference]: Finished difference Result 364 states and 467 transitions. [2024-11-14 05:24:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:19,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-11-14 05:24:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:19,916 INFO L225 Difference]: With dead ends: 364 [2024-11-14 05:24:19,916 INFO L226 Difference]: Without dead ends: 356 [2024-11-14 05:24:19,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:19,918 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 87 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:19,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 203 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:24:19,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-14 05:24:19,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 279. [2024-11-14 05:24:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 196 states have (on average 1.7142857142857142) internal successors, (336), 253 states have internal predecessors, (336), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:19,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 382 transitions. [2024-11-14 05:24:19,956 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 382 transitions. Word has length 22 [2024-11-14 05:24:19,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:19,956 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 382 transitions. [2024-11-14 05:24:19,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:19,957 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 382 transitions. [2024-11-14 05:24:19,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 05:24:19,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:19,958 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:19,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:20,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:20,162 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:20,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:20,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1996847827, now seen corresponding path program 1 times [2024-11-14 05:24:20,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:20,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243225507] [2024-11-14 05:24:20,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:20,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:20,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094057288] [2024-11-14 05:24:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:20,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:20,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:20,190 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:20,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:24:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:20,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:20,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:20,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:24:20,417 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:20,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:20,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243225507] [2024-11-14 05:24:20,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:20,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094057288] [2024-11-14 05:24:20,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094057288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:20,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:20,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:20,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999950580] [2024-11-14 05:24:20,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:20,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:20,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:20,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:20,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:20,420 INFO L87 Difference]: Start difference. First operand 279 states and 382 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:20,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:20,806 INFO L93 Difference]: Finished difference Result 334 states and 447 transitions. [2024-11-14 05:24:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:20,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2024-11-14 05:24:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:20,809 INFO L225 Difference]: With dead ends: 334 [2024-11-14 05:24:20,810 INFO L226 Difference]: Without dead ends: 332 [2024-11-14 05:24:20,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:20,811 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 240 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:20,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 137 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:24:20,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-14 05:24:20,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 279. [2024-11-14 05:24:20,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 196 states have (on average 1.6938775510204083) internal successors, (332), 253 states have internal predecessors, (332), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:20,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 378 transitions. [2024-11-14 05:24:20,837 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 378 transitions. Word has length 24 [2024-11-14 05:24:20,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:20,837 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 378 transitions. [2024-11-14 05:24:20,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:20,837 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 378 transitions. [2024-11-14 05:24:20,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 05:24:20,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:20,842 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:20,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:21,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:24:21,044 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:21,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:21,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1772740424, now seen corresponding path program 1 times [2024-11-14 05:24:21,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:21,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594313987] [2024-11-14 05:24:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:21,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:21,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858610993] [2024-11-14 05:24:21,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:21,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:21,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:21,072 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:21,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:24:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:21,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:21,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:21,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:24:21,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:21,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:21,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594313987] [2024-11-14 05:24:21,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:21,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858610993] [2024-11-14 05:24:21,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858610993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:21,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:21,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:21,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167666158] [2024-11-14 05:24:21,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:21,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:21,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:21,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:21,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:21,276 INFO L87 Difference]: Start difference. First operand 279 states and 378 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:21,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:21,813 INFO L93 Difference]: Finished difference Result 334 states and 443 transitions. [2024-11-14 05:24:21,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:21,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-11-14 05:24:21,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:21,816 INFO L225 Difference]: With dead ends: 334 [2024-11-14 05:24:21,816 INFO L226 Difference]: Without dead ends: 332 [2024-11-14 05:24:21,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:21,818 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 179 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:21,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 150 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:24:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-14 05:24:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 279. [2024-11-14 05:24:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 196 states have (on average 1.6734693877551021) internal successors, (328), 253 states have internal predecessors, (328), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:21,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 374 transitions. [2024-11-14 05:24:21,841 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 374 transitions. Word has length 25 [2024-11-14 05:24:21,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:21,841 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 374 transitions. [2024-11-14 05:24:21,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:21,842 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 374 transitions. [2024-11-14 05:24:21,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 05:24:21,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:21,843 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:21,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:22,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:22,047 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:22,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash 879621775, now seen corresponding path program 1 times [2024-11-14 05:24:22,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:22,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745411012] [2024-11-14 05:24:22,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:22,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:22,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599987452] [2024-11-14 05:24:22,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:22,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:22,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:22,094 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:22,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:24:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:22,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:22,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:24:22,226 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:22,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:22,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745411012] [2024-11-14 05:24:22,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:22,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599987452] [2024-11-14 05:24:22,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599987452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:22,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:22,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:22,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136371483] [2024-11-14 05:24:22,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:22,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:22,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:22,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:22,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:22,229 INFO L87 Difference]: Start difference. First operand 279 states and 374 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:23,688 INFO L93 Difference]: Finished difference Result 354 states and 447 transitions. [2024-11-14 05:24:23,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:23,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2024-11-14 05:24:23,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:23,692 INFO L225 Difference]: With dead ends: 354 [2024-11-14 05:24:23,693 INFO L226 Difference]: Without dead ends: 352 [2024-11-14 05:24:23,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:23,694 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 150 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:23,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 183 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 05:24:23,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-14 05:24:23,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 280. [2024-11-14 05:24:23,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 197 states have (on average 1.6548223350253808) internal successors, (326), 254 states have internal predecessors, (326), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:23,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 372 transitions. [2024-11-14 05:24:23,724 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 372 transitions. Word has length 26 [2024-11-14 05:24:23,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:23,725 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 372 transitions. [2024-11-14 05:24:23,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 372 transitions. [2024-11-14 05:24:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 05:24:23,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:23,727 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:23,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:24:23,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:23,931 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:23,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:23,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1498471322, now seen corresponding path program 1 times [2024-11-14 05:24:23,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:23,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671782973] [2024-11-14 05:24:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:23,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:23,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591972029] [2024-11-14 05:24:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:23,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:23,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:23,979 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:23,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:24:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:24,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:24,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:24:24,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:24,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:24,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671782973] [2024-11-14 05:24:24,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:24,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591972029] [2024-11-14 05:24:24,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591972029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:24,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:24,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:24,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897579509] [2024-11-14 05:24:24,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:24,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:24,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:24,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:24,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:24,270 INFO L87 Difference]: Start difference. First operand 280 states and 372 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:25,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:25,902 INFO L93 Difference]: Finished difference Result 354 states and 443 transitions. [2024-11-14 05:24:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:25,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-11-14 05:24:25,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:25,905 INFO L225 Difference]: With dead ends: 354 [2024-11-14 05:24:25,906 INFO L226 Difference]: Without dead ends: 352 [2024-11-14 05:24:25,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:25,907 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 149 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:25,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 185 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:24:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-14 05:24:25,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 281. [2024-11-14 05:24:25,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 198 states have (on average 1.6363636363636365) internal successors, (324), 255 states have internal predecessors, (324), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:25,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 370 transitions. [2024-11-14 05:24:25,930 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 370 transitions. Word has length 27 [2024-11-14 05:24:25,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:25,931 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 370 transitions. [2024-11-14 05:24:25,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:25,932 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 370 transitions. [2024-11-14 05:24:25,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-14 05:24:25,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:25,937 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:25,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 05:24:26,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 05:24:26,138 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:26,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:26,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1532810054, now seen corresponding path program 1 times [2024-11-14 05:24:26,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:26,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787554258] [2024-11-14 05:24:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:26,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:26,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1904223451] [2024-11-14 05:24:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:26,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:26,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:26,165 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:26,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:24:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:26,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:26,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:24:26,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:26,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:26,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787554258] [2024-11-14 05:24:26,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:26,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904223451] [2024-11-14 05:24:26,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904223451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:26,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:26,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:26,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490102884] [2024-11-14 05:24:26,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:26,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:26,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:26,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:26,352 INFO L87 Difference]: Start difference. First operand 281 states and 370 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:24:26,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:26,973 INFO L93 Difference]: Finished difference Result 305 states and 389 transitions. [2024-11-14 05:24:26,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:26,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-14 05:24:26,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:26,976 INFO L225 Difference]: With dead ends: 305 [2024-11-14 05:24:26,976 INFO L226 Difference]: Without dead ends: 303 [2024-11-14 05:24:26,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:26,977 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 164 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:26,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 152 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:24:26,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-14 05:24:26,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 282. [2024-11-14 05:24:26,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 199 states have (on average 1.6231155778894473) internal successors, (323), 256 states have internal predecessors, (323), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 369 transitions. [2024-11-14 05:24:26,997 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 369 transitions. Word has length 33 [2024-11-14 05:24:26,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:26,997 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 369 transitions. [2024-11-14 05:24:26,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:24:26,998 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 369 transitions. [2024-11-14 05:24:27,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-14 05:24:27,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:27,003 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:27,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 05:24:27,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:24:27,204 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:27,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:27,204 INFO L85 PathProgramCache]: Analyzing trace with hash 272471500, now seen corresponding path program 1 times [2024-11-14 05:24:27,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:27,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263688332] [2024-11-14 05:24:27,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:27,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:27,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [484925721] [2024-11-14 05:24:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:27,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:27,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:27,249 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:27,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:24:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:27,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:27,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:24:27,454 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:27,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:27,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263688332] [2024-11-14 05:24:27,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:27,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484925721] [2024-11-14 05:24:27,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484925721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:27,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:27,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:27,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349885396] [2024-11-14 05:24:27,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:27,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:27,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:27,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:27,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:27,456 INFO L87 Difference]: Start difference. First operand 282 states and 369 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:24:27,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:27,951 INFO L93 Difference]: Finished difference Result 305 states and 386 transitions. [2024-11-14 05:24:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:27,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-11-14 05:24:27,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:27,955 INFO L225 Difference]: With dead ends: 305 [2024-11-14 05:24:27,955 INFO L226 Difference]: Without dead ends: 303 [2024-11-14 05:24:27,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:27,956 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 212 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:27,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 147 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:24:27,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-14 05:24:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 283. [2024-11-14 05:24:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 200 states have (on average 1.61) internal successors, (322), 257 states have internal predecessors, (322), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:27,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 368 transitions. [2024-11-14 05:24:27,973 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 368 transitions. Word has length 34 [2024-11-14 05:24:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:27,974 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 368 transitions. [2024-11-14 05:24:27,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:24:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 368 transitions. [2024-11-14 05:24:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 05:24:27,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:27,977 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:27,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:28,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 05:24:28,180 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:28,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:28,180 INFO L85 PathProgramCache]: Analyzing trace with hash -143318008, now seen corresponding path program 1 times [2024-11-14 05:24:28,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:28,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197908521] [2024-11-14 05:24:28,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:28,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:28,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10411663] [2024-11-14 05:24:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:28,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:28,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:28,215 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:28,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:24:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:28,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:28,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:24:28,327 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:28,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:28,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197908521] [2024-11-14 05:24:28,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:28,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10411663] [2024-11-14 05:24:28,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10411663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:28,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:28,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:28,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389684352] [2024-11-14 05:24:28,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:28,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:28,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:28,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:28,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:28,329 INFO L87 Difference]: Start difference. First operand 283 states and 368 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:24:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:29,219 INFO L93 Difference]: Finished difference Result 313 states and 375 transitions. [2024-11-14 05:24:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-11-14 05:24:29,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:29,222 INFO L225 Difference]: With dead ends: 313 [2024-11-14 05:24:29,222 INFO L226 Difference]: Without dead ends: 311 [2024-11-14 05:24:29,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:29,223 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 136 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:29,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 209 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 05:24:29,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-14 05:24:29,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 284. [2024-11-14 05:24:29,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 201 states have (on average 1.5970149253731343) internal successors, (321), 258 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:29,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 367 transitions. [2024-11-14 05:24:29,240 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 367 transitions. Word has length 35 [2024-11-14 05:24:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:29,240 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 367 transitions. [2024-11-14 05:24:29,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:24:29,240 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 367 transitions. [2024-11-14 05:24:29,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-14 05:24:29,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:29,241 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:29,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:29,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:29,442 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:29,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:29,442 INFO L85 PathProgramCache]: Analyzing trace with hash -147890866, now seen corresponding path program 1 times [2024-11-14 05:24:29,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:29,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464225085] [2024-11-14 05:24:29,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:29,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:29,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307714726] [2024-11-14 05:24:29,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:29,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:29,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:29,485 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:29,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 05:24:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:29,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:29,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:29,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:24:29,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:29,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:29,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464225085] [2024-11-14 05:24:29,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:29,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307714726] [2024-11-14 05:24:29,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307714726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:29,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:29,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:29,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024018603] [2024-11-14 05:24:29,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:29,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:29,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:29,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:29,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:29,746 INFO L87 Difference]: Start difference. First operand 284 states and 367 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:24:31,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:31,358 INFO L93 Difference]: Finished difference Result 313 states and 372 transitions. [2024-11-14 05:24:31,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:31,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-11-14 05:24:31,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:31,360 INFO L225 Difference]: With dead ends: 313 [2024-11-14 05:24:31,360 INFO L226 Difference]: Without dead ends: 311 [2024-11-14 05:24:31,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:31,361 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 83 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:31,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 250 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:24:31,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-14 05:24:31,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 285. [2024-11-14 05:24:31,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 202 states have (on average 1.5841584158415842) internal successors, (320), 259 states have internal predecessors, (320), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:31,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 366 transitions. [2024-11-14 05:24:31,377 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 366 transitions. Word has length 36 [2024-11-14 05:24:31,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:31,377 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 366 transitions. [2024-11-14 05:24:31,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:24:31,378 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 366 transitions. [2024-11-14 05:24:31,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-14 05:24:31,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:31,379 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:31,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:31,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:31,583 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:31,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:31,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1915788669, now seen corresponding path program 1 times [2024-11-14 05:24:31,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:31,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447142232] [2024-11-14 05:24:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:31,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:31,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:31,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447142232] [2024-11-14 05:24:31,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447142232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:31,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:31,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:31,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799987588] [2024-11-14 05:24:31,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:31,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:31,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:31,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:31,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:31,648 INFO L87 Difference]: Start difference. First operand 285 states and 366 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 05:24:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:31,713 INFO L93 Difference]: Finished difference Result 376 states and 483 transitions. [2024-11-14 05:24:31,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:31,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 41 [2024-11-14 05:24:31,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:31,715 INFO L225 Difference]: With dead ends: 376 [2024-11-14 05:24:31,715 INFO L226 Difference]: Without dead ends: 374 [2024-11-14 05:24:31,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:31,716 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 46 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 281 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 05:24:31,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 281 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-14 05:24:31,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 287. [2024-11-14 05:24:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 205 states have (on average 1.5609756097560976) internal successors, (320), 261 states have internal predecessors, (320), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 366 transitions. [2024-11-14 05:24:31,741 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 366 transitions. Word has length 41 [2024-11-14 05:24:31,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:31,742 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 366 transitions. [2024-11-14 05:24:31,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 05:24:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 366 transitions. [2024-11-14 05:24:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 05:24:31,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:31,745 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:31,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 05:24:31,745 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:31,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:31,746 INFO L85 PathProgramCache]: Analyzing trace with hash -740093276, now seen corresponding path program 1 times [2024-11-14 05:24:31,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:31,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973376617] [2024-11-14 05:24:31,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:31,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:31,819 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:31,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:31,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973376617] [2024-11-14 05:24:31,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973376617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:31,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:31,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:31,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609364231] [2024-11-14 05:24:31,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:31,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:31,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:31,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:31,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:31,821 INFO L87 Difference]: Start difference. First operand 287 states and 366 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 05:24:31,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:31,890 INFO L93 Difference]: Finished difference Result 375 states and 477 transitions. [2024-11-14 05:24:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:31,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-14 05:24:31,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:31,892 INFO L225 Difference]: With dead ends: 375 [2024-11-14 05:24:31,893 INFO L226 Difference]: Without dead ends: 373 [2024-11-14 05:24:31,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:31,893 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 45 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:31,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 270 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-14 05:24:31,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 289. [2024-11-14 05:24:31,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 208 states have (on average 1.5288461538461537) internal successors, (318), 263 states have internal predecessors, (318), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:31,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 364 transitions. [2024-11-14 05:24:31,916 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 364 transitions. Word has length 42 [2024-11-14 05:24:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:31,917 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 364 transitions. [2024-11-14 05:24:31,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 05:24:31,917 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 364 transitions. [2024-11-14 05:24:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 05:24:31,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:31,920 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:31,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 05:24:31,920 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:31,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:31,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1468027139, now seen corresponding path program 1 times [2024-11-14 05:24:31,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:31,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155704722] [2024-11-14 05:24:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:31,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:32,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:32,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155704722] [2024-11-14 05:24:32,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155704722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:32,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:32,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:32,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650857495] [2024-11-14 05:24:32,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:32,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:32,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:32,072 INFO L87 Difference]: Start difference. First operand 289 states and 364 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 05:24:33,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:33,077 INFO L93 Difference]: Finished difference Result 376 states and 472 transitions. [2024-11-14 05:24:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:24:33,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 43 [2024-11-14 05:24:33,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:33,079 INFO L225 Difference]: With dead ends: 376 [2024-11-14 05:24:33,079 INFO L226 Difference]: Without dead ends: 375 [2024-11-14 05:24:33,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:24:33,080 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 178 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:33,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 169 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:24:33,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-14 05:24:33,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 291. [2024-11-14 05:24:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 210 states have (on average 1.5238095238095237) internal successors, (320), 265 states have internal predecessors, (320), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:33,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 366 transitions. [2024-11-14 05:24:33,099 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 366 transitions. Word has length 43 [2024-11-14 05:24:33,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:33,099 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 366 transitions. [2024-11-14 05:24:33,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 05:24:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 366 transitions. [2024-11-14 05:24:33,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 05:24:33,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:33,100 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:33,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 05:24:33,101 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:33,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:33,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1468013237, now seen corresponding path program 1 times [2024-11-14 05:24:33,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:33,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032580281] [2024-11-14 05:24:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:33,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:33,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:33,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032580281] [2024-11-14 05:24:33,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032580281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:33,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:33,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:33,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101358227] [2024-11-14 05:24:33,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:33,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:33,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:33,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:33,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:33,191 INFO L87 Difference]: Start difference. First operand 291 states and 366 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 05:24:33,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:33,762 INFO L93 Difference]: Finished difference Result 376 states and 471 transitions. [2024-11-14 05:24:33,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:24:33,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 43 [2024-11-14 05:24:33,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:33,764 INFO L225 Difference]: With dead ends: 376 [2024-11-14 05:24:33,764 INFO L226 Difference]: Without dead ends: 375 [2024-11-14 05:24:33,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:24:33,765 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 179 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:33,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 166 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:24:33,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-14 05:24:33,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 291. [2024-11-14 05:24:33,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 210 states have (on average 1.519047619047619) internal successors, (319), 265 states have internal predecessors, (319), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 365 transitions. [2024-11-14 05:24:33,787 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 365 transitions. Word has length 43 [2024-11-14 05:24:33,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:33,787 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 365 transitions. [2024-11-14 05:24:33,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 05:24:33,787 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 365 transitions. [2024-11-14 05:24:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 05:24:33,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:33,788 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:33,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 05:24:33,788 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:33,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:33,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1655577578, now seen corresponding path program 1 times [2024-11-14 05:24:33,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:33,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954190969] [2024-11-14 05:24:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:33,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:33,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:33,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954190969] [2024-11-14 05:24:33,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954190969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:33,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:33,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:33,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420779325] [2024-11-14 05:24:33,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:33,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:33,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:33,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:33,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:33,930 INFO L87 Difference]: Start difference. First operand 291 states and 365 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 05:24:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:34,314 INFO L93 Difference]: Finished difference Result 352 states and 433 transitions. [2024-11-14 05:24:34,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:34,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 46 [2024-11-14 05:24:34,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:34,317 INFO L225 Difference]: With dead ends: 352 [2024-11-14 05:24:34,317 INFO L226 Difference]: Without dead ends: 348 [2024-11-14 05:24:34,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:34,317 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 48 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:34,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 157 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:24:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-14 05:24:34,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 301. [2024-11-14 05:24:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 220 states have (on average 1.5) internal successors, (330), 275 states have internal predecessors, (330), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 376 transitions. [2024-11-14 05:24:34,337 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 376 transitions. Word has length 46 [2024-11-14 05:24:34,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:34,338 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 376 transitions. [2024-11-14 05:24:34,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 05:24:34,338 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 376 transitions. [2024-11-14 05:24:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 05:24:34,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:34,339 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:34,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 05:24:34,339 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:34,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:34,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2092696989, now seen corresponding path program 1 times [2024-11-14 05:24:34,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:34,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195965206] [2024-11-14 05:24:34,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:34,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:34,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:34,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195965206] [2024-11-14 05:24:34,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195965206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:34,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123936313] [2024-11-14 05:24:34,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:34,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:34,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:34,506 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:34,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 05:24:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:34,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:34,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:34,677 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:34,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:34,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123936313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:34,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:34,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 05:24:34,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156524163] [2024-11-14 05:24:34,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:34,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:24:34,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:34,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:24:34,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:24:34,679 INFO L87 Difference]: Start difference. First operand 301 states and 376 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:24:34,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:34,723 INFO L93 Difference]: Finished difference Result 301 states and 376 transitions. [2024-11-14 05:24:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:34,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-11-14 05:24:34,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:34,725 INFO L225 Difference]: With dead ends: 301 [2024-11-14 05:24:34,726 INFO L226 Difference]: Without dead ends: 300 [2024-11-14 05:24:34,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 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 05:24:34,726 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 106 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:34,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 260 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:34,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-14 05:24:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2024-11-14 05:24:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 220 states have (on average 1.4863636363636363) internal successors, (327), 274 states have internal predecessors, (327), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:24:34,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 373 transitions. [2024-11-14 05:24:34,747 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 373 transitions. Word has length 49 [2024-11-14 05:24:34,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:34,747 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 373 transitions. [2024-11-14 05:24:34,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:24:34,748 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 373 transitions. [2024-11-14 05:24:34,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 05:24:34,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:34,748 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:34,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 05:24:34,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:34,953 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:34,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:34,953 INFO L85 PathProgramCache]: Analyzing trace with hash -449097176, now seen corresponding path program 1 times [2024-11-14 05:24:34,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:34,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412722897] [2024-11-14 05:24:34,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:34,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:35,086 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:35,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:35,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412722897] [2024-11-14 05:24:35,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412722897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:35,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870204825] [2024-11-14 05:24:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:35,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:35,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:35,089 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:35,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 05:24:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:35,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:35,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:35,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:35,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870204825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:35,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:35,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 05:24:35,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414482643] [2024-11-14 05:24:35,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:35,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:24:35,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:35,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:24:35,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:24:35,241 INFO L87 Difference]: Start difference. First operand 300 states and 373 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:24:35,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:35,330 INFO L93 Difference]: Finished difference Result 390 states and 479 transitions. [2024-11-14 05:24:35,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:24:35,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-11-14 05:24:35,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:35,332 INFO L225 Difference]: With dead ends: 390 [2024-11-14 05:24:35,332 INFO L226 Difference]: Without dead ends: 389 [2024-11-14 05:24:35,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 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 05:24:35,335 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 101 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:35,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 587 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:35,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-14 05:24:35,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 351. [2024-11-14 05:24:35,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 263 states have (on average 1.494296577946768) internal successors, (393), 318 states have internal predecessors, (393), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-14 05:24:35,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 455 transitions. [2024-11-14 05:24:35,371 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 455 transitions. Word has length 50 [2024-11-14 05:24:35,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:35,371 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 455 transitions. [2024-11-14 05:24:35,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:24:35,371 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 455 transitions. [2024-11-14 05:24:35,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 05:24:35,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:35,372 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:35,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:35,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:35,573 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:35,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:35,574 INFO L85 PathProgramCache]: Analyzing trace with hash 871039620, now seen corresponding path program 1 times [2024-11-14 05:24:35,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:35,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112194768] [2024-11-14 05:24:35,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:35,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 05:24:35,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:35,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112194768] [2024-11-14 05:24:35,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112194768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:35,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921131498] [2024-11-14 05:24:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:35,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:35,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:35,753 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:35,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 05:24:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:35,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:24:35,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:24:36,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:36,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921131498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:36,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:36,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-14 05:24:36,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291852444] [2024-11-14 05:24:36,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:36,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:36,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:36,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:36,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:24:36,078 INFO L87 Difference]: Start difference. First operand 351 states and 455 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:24:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:36,926 INFO L93 Difference]: Finished difference Result 406 states and 535 transitions. [2024-11-14 05:24:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:24:36,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2024-11-14 05:24:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:36,929 INFO L225 Difference]: With dead ends: 406 [2024-11-14 05:24:36,930 INFO L226 Difference]: Without dead ends: 405 [2024-11-14 05:24:36,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:24:36,931 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 65 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:36,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 123 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:24:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-14 05:24:36,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 352. [2024-11-14 05:24:36,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 264 states have (on average 1.4886363636363635) internal successors, (393), 319 states have internal predecessors, (393), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-14 05:24:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 455 transitions. [2024-11-14 05:24:36,971 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 455 transitions. Word has length 52 [2024-11-14 05:24:36,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:36,972 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 455 transitions. [2024-11-14 05:24:36,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:24:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 455 transitions. [2024-11-14 05:24:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 05:24:36,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:36,973 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:36,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 05:24:37,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-14 05:24:37,173 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:37,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:37,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1232424590, now seen corresponding path program 1 times [2024-11-14 05:24:37,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:37,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827164467] [2024-11-14 05:24:37,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:37,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 05:24:37,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:37,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827164467] [2024-11-14 05:24:37,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827164467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:37,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930646598] [2024-11-14 05:24:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:37,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:37,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:37,424 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:37,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 05:24:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:37,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:24:37,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:37,771 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:24:37,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:37,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930646598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:37,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:37,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-14 05:24:37,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935159465] [2024-11-14 05:24:37,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:37,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:37,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:37,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:37,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:24:37,773 INFO L87 Difference]: Start difference. First operand 352 states and 455 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:24:38,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:38,663 INFO L93 Difference]: Finished difference Result 406 states and 533 transitions. [2024-11-14 05:24:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:38,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2024-11-14 05:24:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:38,669 INFO L225 Difference]: With dead ends: 406 [2024-11-14 05:24:38,669 INFO L226 Difference]: Without dead ends: 405 [2024-11-14 05:24:38,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:24:38,671 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 62 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:38,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 151 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:24:38,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-14 05:24:38,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 353. [2024-11-14 05:24:38,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 265 states have (on average 1.4830188679245282) internal successors, (393), 320 states have internal predecessors, (393), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-14 05:24:38,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 455 transitions. [2024-11-14 05:24:38,697 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 455 transitions. Word has length 53 [2024-11-14 05:24:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:38,698 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 455 transitions. [2024-11-14 05:24:38,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:24:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 455 transitions. [2024-11-14 05:24:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 05:24:38,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:38,699 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:38,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 05:24:38,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-14 05:24:38,904 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:38,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:38,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2085654983, now seen corresponding path program 1 times [2024-11-14 05:24:38,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:38,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011135209] [2024-11-14 05:24:38,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:38,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:39,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:39,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011135209] [2024-11-14 05:24:39,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011135209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:39,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094432186] [2024-11-14 05:24:39,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:39,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:39,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:39,005 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:39,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 05:24:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:39,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:24:39,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:39,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:39,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:39,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094432186] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:39,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [465785011] [2024-11-14 05:24:39,324 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-14 05:24:39,324 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:39,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:39,334 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:39,335 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:43,098 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 05:24:43,100 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 64 for LOIs [2024-11-14 05:24:43,121 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:24:46,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [465785011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:46,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:24:46,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [7, 5, 6] total 32 [2024-11-14 05:24:46,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698821136] [2024-11-14 05:24:46,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:46,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 05:24:46,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:46,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 05:24:46,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2024-11-14 05:24:46,809 INFO L87 Difference]: Start difference. First operand 353 states and 455 transitions. Second operand has 21 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:24:53,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:53,015 INFO L93 Difference]: Finished difference Result 421 states and 504 transitions. [2024-11-14 05:24:53,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 05:24:53,016 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 52 [2024-11-14 05:24:53,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:53,020 INFO L225 Difference]: With dead ends: 421 [2024-11-14 05:24:53,020 INFO L226 Difference]: Without dead ends: 308 [2024-11-14 05:24:53,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 117 SyntacticMatches, 14 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=288, Invalid=1518, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:24:53,024 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 340 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:53,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 429 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-14 05:24:53,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-14 05:24:53,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 290. [2024-11-14 05:24:53,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 208 states have (on average 1.4663461538461537) internal successors, (305), 262 states have internal predecessors, (305), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-14 05:24:53,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2024-11-14 05:24:53,052 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 52 [2024-11-14 05:24:53,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:53,052 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2024-11-14 05:24:53,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:24:53,052 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2024-11-14 05:24:53,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 05:24:53,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:53,053 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:53,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 05:24:53,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-14 05:24:53,253 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:53,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:53,254 INFO L85 PathProgramCache]: Analyzing trace with hash 913706027, now seen corresponding path program 1 times [2024-11-14 05:24:53,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:53,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345910754] [2024-11-14 05:24:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:53,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:53,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:53,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345910754] [2024-11-14 05:24:53,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345910754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:53,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104133984] [2024-11-14 05:24:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:53,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:53,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:53,366 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:53,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 05:24:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:53,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:24:53,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:53,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:53,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:24:53,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104133984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:53,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [42116791] [2024-11-14 05:24:53,666 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-14 05:24:53,666 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:53,666 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:53,666 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:53,667 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:56,691 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 05:24:56,692 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 64 for LOIs [2024-11-14 05:24:56,724 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:25:00,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [42116791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:00,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:25:00,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [7, 5, 6] total 33 [2024-11-14 05:25:00,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071932152] [2024-11-14 05:25:00,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:00,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:25:00,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:00,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:25:00,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=886, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 05:25:00,498 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand has 22 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 15 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 05:25:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:05,344 INFO L93 Difference]: Finished difference Result 374 states and 428 transitions. [2024-11-14 05:25:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 05:25:05,345 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 15 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 52 [2024-11-14 05:25:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:05,346 INFO L225 Difference]: With dead ends: 374 [2024-11-14 05:25:05,346 INFO L226 Difference]: Without dead ends: 280 [2024-11-14 05:25:05,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 116 SyntacticMatches, 14 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=289, Invalid=1517, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:25:05,348 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 178 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:05,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 351 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-14 05:25:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-14 05:25:05,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 262. [2024-11-14 05:25:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 182 states have (on average 1.4230769230769231) internal successors, (259), 236 states have internal predecessors, (259), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:25:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 299 transitions. [2024-11-14 05:25:05,371 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 299 transitions. Word has length 52 [2024-11-14 05:25:05,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:05,371 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 299 transitions. [2024-11-14 05:25:05,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 15 states have internal predecessors, (36), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 05:25:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 299 transitions. [2024-11-14 05:25:05,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 05:25:05,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:05,373 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:05,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 05:25:05,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:05,578 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:25:05,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1224953414, now seen corresponding path program 1 times [2024-11-14 05:25:05,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:05,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902348101] [2024-11-14 05:25:05,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:05,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:05,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:05,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902348101] [2024-11-14 05:25:05,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902348101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:05,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275796395] [2024-11-14 05:25:05,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:05,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:05,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:05,712 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:05,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 05:25:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:05,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:25:05,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:06,012 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:25:06,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275796395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:06,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:25:06,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-14 05:25:06,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232796104] [2024-11-14 05:25:06,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:06,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:25:06,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:06,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:25:06,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:25:06,013 INFO L87 Difference]: Start difference. First operand 262 states and 299 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-14 05:25:06,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:06,526 INFO L93 Difference]: Finished difference Result 363 states and 465 transitions. [2024-11-14 05:25:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:25:06,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2024-11-14 05:25:06,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:06,529 INFO L225 Difference]: With dead ends: 363 [2024-11-14 05:25:06,529 INFO L226 Difference]: Without dead ends: 361 [2024-11-14 05:25:06,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:25:06,530 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 134 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:06,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 133 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:25:06,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-14 05:25:06,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 259. [2024-11-14 05:25:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 181 states have (on average 1.408839779005525) internal successors, (255), 233 states have internal predecessors, (255), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:25:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 295 transitions. [2024-11-14 05:25:06,554 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 295 transitions. Word has length 83 [2024-11-14 05:25:06,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:06,554 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 295 transitions. [2024-11-14 05:25:06,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-14 05:25:06,554 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 295 transitions. [2024-11-14 05:25:06,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 05:25:06,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:06,555 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:06,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-14 05:25:06,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 05:25:06,760 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:25:06,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:06,760 INFO L85 PathProgramCache]: Analyzing trace with hash 681149933, now seen corresponding path program 1 times [2024-11-14 05:25:06,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:06,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572587661] [2024-11-14 05:25:06,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:06,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:06,876 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:06,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:06,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572587661] [2024-11-14 05:25:06,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572587661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:06,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808537398] [2024-11-14 05:25:06,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:06,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:06,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:06,879 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:06,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 05:25:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:06,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:25:06,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:07,215 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:25:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:07,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808537398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:25:07,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1153376605] [2024-11-14 05:25:07,390 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:25:07,390 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:25:07,391 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:25:07,391 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:25:07,391 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:25:09,751 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 05:25:09,753 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 64 for LOIs [2024-11-14 05:25:09,766 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:25:13,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1153376605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:13,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:25:13,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [3, 3, 3] total 28 [2024-11-14 05:25:13,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499564054] [2024-11-14 05:25:13,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:13,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:25:13,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:13,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:25:13,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=669, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:25:13,915 INFO L87 Difference]: Start difference. First operand 259 states and 295 transitions. Second operand has 23 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 16 states have internal predecessors, (39), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 05:25:17,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:17,983 INFO L93 Difference]: Finished difference Result 274 states and 309 transitions. [2024-11-14 05:25:17,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 05:25:17,984 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 16 states have internal predecessors, (39), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 84 [2024-11-14 05:25:17,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:17,985 INFO L225 Difference]: With dead ends: 274 [2024-11-14 05:25:17,985 INFO L226 Difference]: Without dead ends: 273 [2024-11-14 05:25:17,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 202 SyntacticMatches, 24 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=311, Invalid=1411, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 05:25:17,986 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 92 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:17,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 568 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 05:25:17,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-14 05:25:18,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 259. [2024-11-14 05:25:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 181 states have (on average 1.4033149171270718) internal successors, (254), 233 states have internal predecessors, (254), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:25:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 294 transitions. [2024-11-14 05:25:18,009 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 294 transitions. Word has length 84 [2024-11-14 05:25:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:18,009 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 294 transitions. [2024-11-14 05:25:18,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 16 states have internal predecessors, (39), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 05:25:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 294 transitions. [2024-11-14 05:25:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 05:25:18,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:18,011 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:18,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-14 05:25:18,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:18,211 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:25:18,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:18,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2114026226, now seen corresponding path program 1 times [2024-11-14 05:25:18,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:18,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834789608] [2024-11-14 05:25:18,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:18,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:18,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:18,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834789608] [2024-11-14 05:25:18,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834789608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:18,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996122402] [2024-11-14 05:25:18,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:18,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:18,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:18,324 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:18,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 05:25:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:18,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:25:18,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:18,632 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:18,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:25:18,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996122402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:18,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:25:18,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-14 05:25:18,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446932200] [2024-11-14 05:25:18,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:18,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:25:18,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:18,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:25:18,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:25:18,634 INFO L87 Difference]: Start difference. First operand 259 states and 294 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-14 05:25:19,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:19,299 INFO L93 Difference]: Finished difference Result 368 states and 468 transitions. [2024-11-14 05:25:19,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:25:19,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2024-11-14 05:25:19,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:19,301 INFO L225 Difference]: With dead ends: 368 [2024-11-14 05:25:19,301 INFO L226 Difference]: Without dead ends: 366 [2024-11-14 05:25:19,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:25:19,302 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 95 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:19,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 168 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:25:19,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-14 05:25:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 256. [2024-11-14 05:25:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 180 states have (on average 1.3944444444444444) internal successors, (251), 230 states have internal predecessors, (251), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:25:19,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 291 transitions. [2024-11-14 05:25:19,327 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 291 transitions. Word has length 85 [2024-11-14 05:25:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:19,328 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 291 transitions. [2024-11-14 05:25:19,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-14 05:25:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 291 transitions. [2024-11-14 05:25:19,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 05:25:19,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:19,329 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:19,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 05:25:19,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 05:25:19,530 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:25:19,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:19,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1110303445, now seen corresponding path program 1 times [2024-11-14 05:25:19,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:19,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997763017] [2024-11-14 05:25:19,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:19,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:19,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:19,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997763017] [2024-11-14 05:25:19,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997763017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:19,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035236473] [2024-11-14 05:25:19,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:19,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:19,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:19,630 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:19,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 05:25:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:19,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:25:19,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:19,940 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:19,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:25:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:20,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035236473] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:25:20,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1239504844] [2024-11-14 05:25:20,125 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 05:25:20,125 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:25:20,125 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:25:20,125 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:25:20,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:25:21,934 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 05:25:21,936 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 64 for LOIs [2024-11-14 05:25:21,949 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:25:26,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1239504844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:26,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:25:26,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [3, 3, 3] total 28 [2024-11-14 05:25:26,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135521813] [2024-11-14 05:25:26,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:26,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:25:26,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:26,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:25:26,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:25:26,349 INFO L87 Difference]: Start difference. First operand 256 states and 291 transitions. Second operand has 23 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 17 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:25:30,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:30,680 INFO L93 Difference]: Finished difference Result 274 states and 309 transitions. [2024-11-14 05:25:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 05:25:30,681 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 17 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 86 [2024-11-14 05:25:30,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:30,682 INFO L225 Difference]: With dead ends: 274 [2024-11-14 05:25:30,682 INFO L226 Difference]: Without dead ends: 273 [2024-11-14 05:25:30,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 208 SyntacticMatches, 24 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=319, Invalid=1487, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:25:30,683 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 67 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:30,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 567 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-14 05:25:30,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-14 05:25:30,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 259. [2024-11-14 05:25:30,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 183 states have (on average 1.3879781420765027) internal successors, (254), 233 states have internal predecessors, (254), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:25:30,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 294 transitions. [2024-11-14 05:25:30,710 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 294 transitions. Word has length 86 [2024-11-14 05:25:30,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:30,710 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 294 transitions. [2024-11-14 05:25:30,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 17 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:25:30,711 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 294 transitions. [2024-11-14 05:25:30,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 05:25:30,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:30,712 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:30,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 05:25:30,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 05:25:30,913 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:25:30,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:30,913 INFO L85 PathProgramCache]: Analyzing trace with hash -577682161, now seen corresponding path program 1 times [2024-11-14 05:25:30,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:30,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864995983] [2024-11-14 05:25:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:30,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:31,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:31,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864995983] [2024-11-14 05:25:31,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864995983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:31,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80104311] [2024-11-14 05:25:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:31,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:31,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:31,050 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:31,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 05:25:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:31,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:25:31,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:31,313 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:25:31,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:25:31,530 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:25:31,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80104311] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:25:31,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [17055896] [2024-11-14 05:25:31,533 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2024-11-14 05:25:31,533 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:25:31,533 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:25:31,533 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:25:31,533 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:25:32,896 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 79 for LOIs [2024-11-14 05:25:32,921 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 64 for LOIs [2024-11-14 05:25:32,938 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:25:36,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [17055896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:36,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:25:36,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5, 7, 8] total 33 [2024-11-14 05:25:36,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27301866] [2024-11-14 05:25:36,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:36,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 05:25:36,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:36,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 05:25:36,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 05:25:36,518 INFO L87 Difference]: Start difference. First operand 259 states and 294 transitions. Second operand has 17 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:25:36,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:36,791 INFO L93 Difference]: Finished difference Result 261 states and 295 transitions. [2024-11-14 05:25:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:25:36,792 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 91 [2024-11-14 05:25:36,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:36,792 INFO L225 Difference]: With dead ends: 261 [2024-11-14 05:25:36,792 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:25:36,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 237 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 05:25:36,794 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:36,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:25:36,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:25:36,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:25:36,794 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 05:25:36,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:25:36,795 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2024-11-14 05:25:36,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:36,795 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:25:36,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:25:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:25:36,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:25:36,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 58 remaining) [2024-11-14 05:25:36,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 58 remaining) [2024-11-14 05:25:36,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 58 remaining) [2024-11-14 05:25:36,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 58 remaining) [2024-11-14 05:25:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 58 remaining) [2024-11-14 05:25:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 58 remaining) [2024-11-14 05:25:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 58 remaining) [2024-11-14 05:25:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 58 remaining) [2024-11-14 05:25:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 58 remaining) [2024-11-14 05:25:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 58 remaining) [2024-11-14 05:25:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 58 remaining) [2024-11-14 05:25:36,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 58 remaining) [2024-11-14 05:25:36,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 58 remaining) [2024-11-14 05:25:36,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 58 remaining) [2024-11-14 05:25:36,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 58 remaining) [2024-11-14 05:25:36,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 58 remaining) [2024-11-14 05:25:36,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 58 remaining) [2024-11-14 05:25:36,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 58 remaining) [2024-11-14 05:25:36,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 58 remaining) [2024-11-14 05:25:36,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 58 remaining) [2024-11-14 05:25:36,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 58 remaining) [2024-11-14 05:25:36,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 58 remaining) [2024-11-14 05:25:36,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 58 remaining) [2024-11-14 05:25:36,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 58 remaining) [2024-11-14 05:25:36,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 58 remaining) [2024-11-14 05:25:36,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 58 remaining) [2024-11-14 05:25:36,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 58 remaining) [2024-11-14 05:25:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 58 remaining) [2024-11-14 05:25:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 58 remaining) [2024-11-14 05:25:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 58 remaining) [2024-11-14 05:25:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 58 remaining) [2024-11-14 05:25:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 58 remaining) [2024-11-14 05:25:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 58 remaining) [2024-11-14 05:25:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 58 remaining) [2024-11-14 05:25:36,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 58 remaining) [2024-11-14 05:25:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 58 remaining) [2024-11-14 05:25:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 58 remaining) [2024-11-14 05:25:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 58 remaining) [2024-11-14 05:25:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 58 remaining) [2024-11-14 05:25:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 58 remaining) [2024-11-14 05:25:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 58 remaining) [2024-11-14 05:25:36,804 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 58 remaining) [2024-11-14 05:25:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 58 remaining) [2024-11-14 05:25:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 58 remaining) [2024-11-14 05:25:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 58 remaining) [2024-11-14 05:25:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 58 remaining) [2024-11-14 05:25:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 58 remaining) [2024-11-14 05:25:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 58 remaining) [2024-11-14 05:25:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 58 remaining) [2024-11-14 05:25:36,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 58 remaining) [2024-11-14 05:25:36,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 58 remaining) [2024-11-14 05:25:36,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 58 remaining) [2024-11-14 05:25:36,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 58 remaining) [2024-11-14 05:25:36,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 58 remaining) [2024-11-14 05:25:36,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 58 remaining) [2024-11-14 05:25:36,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 58 remaining) [2024-11-14 05:25:36,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 58 remaining) [2024-11-14 05:25:36,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 58 remaining) [2024-11-14 05:25:36,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 05:25:37,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 05:25:37,010 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:37,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:25:47,167 WARN L286 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 183 DAG size of output: 225 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-14 05:25:51,214 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:25:51,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:25:51,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:25:51,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:25:51,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:25:51,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:25:51,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:25:51,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:25:51,233 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:25:51,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:25:51,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:25:51,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:25:51,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 05:25:51,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:25:51,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:25:51,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,253 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,253 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,253 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,253 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,253 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,253 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,254 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:25:51,254 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:25:51,254 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:25:51,254 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:25:51,254 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:25:51,254 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:25:51,254 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:25:51,255 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:25:51,255 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:25:51,255 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:25:51,255 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:25:51,255 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:25:51,255 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:25:51,255 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,255 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,255 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:25:51,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:25:51,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:25:51,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:25:51,257 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:25:51,257 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:25:51,257 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:25:51,257 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:25:51,257 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:25:51,257 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:25:51,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:25:51,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:25:51 BoogieIcfgContainer [2024-11-14 05:25:51,263 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:25:51,264 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:25:51,264 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:25:51,264 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:25:51,265 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:15" (3/4) ... [2024-11-14 05:25:51,267 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:25:51,271 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-14 05:25:51,272 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-14 05:25:51,279 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-14 05:25:51,279 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-14 05:25:51,279 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 05:25:51,280 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:25:51,378 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:25:51,378 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:25:51,379 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:25:51,380 INFO L158 Benchmark]: Toolchain (without parser) took 97603.42ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 117.4MB in the beginning and 355.7MB in the end (delta: -238.3MB). Peak memory consumption was 369.4MB. Max. memory is 16.1GB. [2024-11-14 05:25:51,380 INFO L158 Benchmark]: CDTParser took 1.31ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:51,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.64ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 105.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:25:51,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.23ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 104.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:51,381 INFO L158 Benchmark]: Boogie Preprocessor took 38.69ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 103.6MB in the end (delta: 938.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:25:51,381 INFO L158 Benchmark]: RCFGBuilder took 1315.53ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 80.2MB in the end (delta: 23.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:25:51,382 INFO L158 Benchmark]: TraceAbstraction took 95655.79ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 79.7MB in the beginning and 359.9MB in the end (delta: -280.2MB). Peak memory consumption was 422.4MB. Max. memory is 16.1GB. [2024-11-14 05:25:51,382 INFO L158 Benchmark]: Witness Printer took 115.04ms. Allocated memory is still 755.0MB. Free memory was 359.9MB in the beginning and 355.7MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:51,384 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.31ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.64ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 105.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.23ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 104.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.69ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 103.6MB in the end (delta: 938.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1315.53ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 80.2MB in the end (delta: 23.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 95655.79ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 79.7MB in the beginning and 359.9MB in the end (delta: -280.2MB). Peak memory consumption was 422.4MB. Max. memory is 16.1GB. * Witness Printer took 115.04ms. Allocated memory is still 755.0MB. Free memory was 359.9MB in the beginning and 355.7MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #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: #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: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,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: #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: Expression type not yet supported in backtranslation: QuantifierExpression - 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: #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: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,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: #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: #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: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,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: #StackHeapBarrier * 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: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: 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: 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: 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: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 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 - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 137 locations, 58 error locations. Started 1 CEGAR loops. OverallTime: 81.3s, OverallIterations: 29, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 34.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3524 SdHoareTripleChecker+Valid, 27.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3374 mSDsluCounter, 6884 SdHoareTripleChecker+Invalid, 25.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4051 mSDsCounter, 290 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11086 IncrementalHoareTripleChecker+Invalid, 11376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 290 mSolverCounterUnsat, 2833 mSDtfsCounter, 11086 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1872 GetRequests, 1520 SyntacticMatches, 84 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3810 ImplicationChecksByTransitivity, 26.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353occurred in iteration=22, InterpolantAutomatonStates: 203, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 29 MinimizatonAttempts, 1365 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 2313 NumberOfCodeBlocks, 2313 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 2326 ConstructedInterpolants, 0 QuantifiedInterpolants, 10772 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2391 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 45 InterpolantComputations, 24 PerfectInterpolantSequences, 664/1035 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: 12.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 15, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 265, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 675, TOOLS_POST_TIME: 7.1s, TOOLS_POST_CALL_APPLICATIONS: 160, TOOLS_POST_CALL_TIME: 2.1s, TOOLS_POST_RETURN_APPLICATIONS: 136, TOOLS_POST_RETURN_TIME: 1.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 964, TOOLS_QUANTIFIERELIM_TIME: 10.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 1126, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 126, DOMAIN_JOIN_TIME: 1.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 10, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 15, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 265, DOMAIN_ISBOTTOM_TIME: 0.5s, LOOP_SUMMARIZER_APPLICATIONS: 5, LOOP_SUMMARIZER_CACHE_MISSES: 5, LOOP_SUMMARIZER_OVERALL_TIME: 8.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 8.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 15, CALL_SUMMARIZER_APPLICATIONS: 136, CALL_SUMMARIZER_CACHE_MISSES: 10, 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: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 9738, DAG_COMPRESSION_RETAINED_NODES: 806, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 58 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((((p == 1) && (x <= 2147483647)) && (b == y)) && (1 <= b)) && (r == 0)) && (q == 0)) && (1 <= x)) && (counter == 0)) && (a == x)) && (y <= 2147483647)) && (s == 1)) - ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: (((counter == 0) && (cond == 1)) && (counter == \old(counter))) - ProcedureContractResult [Line: 10]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:25:51,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a60b54d8-4665-4ea6-b422-c92b32be6afd/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE