./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound50.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_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6730d7e2d0ed6d5662ed2cfed2073e9880e52e7f1f28b9287feb3ffdee545a5a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:19:12,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:19:12,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 16:19:12,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:19:12,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:19:12,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:19:12,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:19:12,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:19:12,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:19:12,924 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:19:12,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:19:12,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:19:12,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:19:12,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:19:12,927 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:19:12,929 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:19:12,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:19:12,929 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:19:12,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:19:12,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:19:12,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:19:12,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:19:12,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:19:12,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:19:12,931 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:19:12,931 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:19:12,931 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:19:12,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:19:12,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:19:12,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:19:12,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:19:12,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:19:12,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:19:12,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:19:12,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:19:12,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:19:12,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:19:12,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:19:12,934 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:19:12,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:19:12,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:19:12,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:19:12,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:19:12,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:19:12,935 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> 6730d7e2d0ed6d5662ed2cfed2073e9880e52e7f1f28b9287feb3ffdee545a5a [2024-11-13 16:19:13,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:19:13,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:19:13,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:19:13,326 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:19:13,327 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:19:13,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound50.c Unable to find full path for "g++" [2024-11-13 16:19:15,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:19:15,986 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:19:15,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound50.c [2024-11-13 16:19:16,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/data/cc95249ff/349c84f405ad4db588f9e3368b74f8fb/FLAG0fabcfa9f [2024-11-13 16:19:16,032 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/data/cc95249ff/349c84f405ad4db588f9e3368b74f8fb [2024-11-13 16:19:16,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:19:16,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:19:16,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:19:16,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:19:16,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:19:16,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194227d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16, skipping insertion in model container [2024-11-13 16:19:16,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:19:16,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:19:16,333 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:19:16,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:19:16,382 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:19:16,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16 WrapperNode [2024-11-13 16:19:16,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:19:16,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:19:16,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:19:16,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:19:16,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,429 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2024-11-13 16:19:16,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:19:16,430 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:19:16,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:19:16,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:19:16,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,444 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,468 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 16:19:16,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,487 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:19:16,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:19:16,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:19:16,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:19:16,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (1/1) ... [2024-11-13 16:19:16,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:19:16,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:16,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:19:16,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:19:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:19:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 16:19:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 16:19:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:19:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:19:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:19:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:19:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:19:16,663 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:19:16,666 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:19:17,224 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-13 16:19:17,224 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:19:17,247 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:19:17,250 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:19:17,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:19:17 BoogieIcfgContainer [2024-11-13 16:19:17,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:19:17,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:19:17,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:19:17,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:19:17,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:19:16" (1/3) ... [2024-11-13 16:19:17,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627cee33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:19:17, skipping insertion in model container [2024-11-13 16:19:17,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:16" (2/3) ... [2024-11-13 16:19:17,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627cee33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:19:17, skipping insertion in model container [2024-11-13 16:19:17,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:19:17" (3/3) ... [2024-11-13 16:19:17,269 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll2_unwindbound50.c [2024-11-13 16:19:17,292 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:19:17,294 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG geo1-ll2_unwindbound50.c that has 3 procedures, 76 locations, 1 initial locations, 1 loop locations, and 26 error locations. [2024-11-13 16:19:17,390 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:19:17,410 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=PETRI_NET, 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;@7b71311a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:19:17,411 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-13 16:19:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 69 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:17,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 16:19:17,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:17,428 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:17,429 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:17,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:17,436 INFO L85 PathProgramCache]: Analyzing trace with hash 848456127, now seen corresponding path program 1 times [2024-11-13 16:19:17,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:17,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877326488] [2024-11-13 16:19:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:17,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:17,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:17,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:17,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:17,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877326488] [2024-11-13 16:19:17,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877326488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:17,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:17,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:19:17,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960611218] [2024-11-13 16:19:17,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:17,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:19:17,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:17,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:19:17,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:19:17,751 INFO L87 Difference]: Start difference. First operand has 76 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 69 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:19:17,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:17,789 INFO L93 Difference]: Finished difference Result 148 states and 163 transitions. [2024-11-13 16:19:17,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:19:17,792 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-13 16:19:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:17,802 INFO L225 Difference]: With dead ends: 148 [2024-11-13 16:19:17,802 INFO L226 Difference]: Without dead ends: 69 [2024-11-13 16:19:17,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:19:17,814 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:17,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:19:17,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-13 16:19:17,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-11-13 16:19:17,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 63 states have internal predecessors, (65), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2024-11-13 16:19:17,874 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 15 [2024-11-13 16:19:17,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:17,874 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2024-11-13 16:19:17,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:19:17,875 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2024-11-13 16:19:17,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 16:19:17,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:17,877 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:17,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:19:17,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:17,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1606779007, now seen corresponding path program 1 times [2024-11-13 16:19:17,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:17,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056993225] [2024-11-13 16:19:17,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:17,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:18,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:18,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:18,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:18,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:18,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056993225] [2024-11-13 16:19:18,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056993225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:18,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:18,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:19:18,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733578389] [2024-11-13 16:19:18,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:18,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:19:18,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:18,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:19:18,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:18,105 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2024-11-13 16:19:18,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:18,191 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2024-11-13 16:19:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:19:18,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 [2024-11-13 16:19:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:18,193 INFO L225 Difference]: With dead ends: 69 [2024-11-13 16:19:18,194 INFO L226 Difference]: Without dead ends: 68 [2024-11-13 16:19:18,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:18,198 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 66 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:18,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 127 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:19:18,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-13 16:19:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-13 16:19:18,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 62 states have internal predecessors, (64), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2024-11-13 16:19:18,219 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 15 [2024-11-13 16:19:18,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:18,222 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2024-11-13 16:19:18,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2024-11-13 16:19:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2024-11-13 16:19:18,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 16:19:18,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:18,224 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:18,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:19:18,225 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:18,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:18,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1729458292, now seen corresponding path program 1 times [2024-11-13 16:19:18,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:18,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79813292] [2024-11-13 16:19:18,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:18,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:18,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:18,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:18,402 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:18,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:18,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79813292] [2024-11-13 16:19:18,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79813292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:18,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:18,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:19:18,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597019846] [2024-11-13 16:19:18,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:18,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:19:18,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:18,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:19:18,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:18,405 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-13 16:19:18,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:18,475 INFO L93 Difference]: Finished difference Result 89 states and 91 transitions. [2024-11-13 16:19:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:19:18,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 16 [2024-11-13 16:19:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:18,478 INFO L225 Difference]: With dead ends: 89 [2024-11-13 16:19:18,478 INFO L226 Difference]: Without dead ends: 72 [2024-11-13 16:19:18,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:18,479 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 8 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:18,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 186 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:19:18,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-13 16:19:18,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-13 16:19:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 42 states have (on average 1.619047619047619) internal successors, (68), 66 states have internal predecessors, (68), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2024-11-13 16:19:18,491 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 16 [2024-11-13 16:19:18,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:18,492 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2024-11-13 16:19:18,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-13 16:19:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2024-11-13 16:19:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 16:19:18,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:18,493 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:18,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:19:18,493 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:18,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:18,494 INFO L85 PathProgramCache]: Analyzing trace with hash 142926478, now seen corresponding path program 1 times [2024-11-13 16:19:18,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:18,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051062374] [2024-11-13 16:19:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:18,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:19:18,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424174983] [2024-11-13 16:19:18,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:18,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:18,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:18,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:18,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:19:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:18,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:19:18,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:18,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:18,750 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:18,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:18,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051062374] [2024-11-13 16:19:18,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:19:18,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424174983] [2024-11-13 16:19:18,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424174983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:18,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:18,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:19:18,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596311774] [2024-11-13 16:19:18,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:18,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:19:18,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:18,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:19:18,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:18,755 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-13 16:19:19,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:19,141 INFO L93 Difference]: Finished difference Result 99 states and 114 transitions. [2024-11-13 16:19:19,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:19:19,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 18 [2024-11-13 16:19:19,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:19,143 INFO L225 Difference]: With dead ends: 99 [2024-11-13 16:19:19,143 INFO L226 Difference]: Without dead ends: 94 [2024-11-13 16:19:19,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:19,148 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 70 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:19,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 62 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 16:19:19,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-13 16:19:19,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-11-13 16:19:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.6440677966101696) internal successors, (97), 83 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2024-11-13 16:19:19,173 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 18 [2024-11-13 16:19:19,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:19,177 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2024-11-13 16:19:19,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-13 16:19:19,178 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2024-11-13 16:19:19,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 16:19:19,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:19,179 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:19,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:19:19,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:19,380 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:19,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:19,380 INFO L85 PathProgramCache]: Analyzing trace with hash 135753574, now seen corresponding path program 1 times [2024-11-13 16:19:19,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:19,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23729180] [2024-11-13 16:19:19,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:19,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:19:19,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206371448] [2024-11-13 16:19:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:19,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:19,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:19,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:19,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:19:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:19,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:19:19,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:19,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:19,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:19,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23729180] [2024-11-13 16:19:19,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:19:19,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206371448] [2024-11-13 16:19:19,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206371448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:19,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:19,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:19:19,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102875094] [2024-11-13 16:19:19,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:19,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:19:19,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:19,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:19:19,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:19,640 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-13 16:19:19,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:19,875 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2024-11-13 16:19:19,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:19:19,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 19 [2024-11-13 16:19:19,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:19,879 INFO L225 Difference]: With dead ends: 99 [2024-11-13 16:19:19,879 INFO L226 Difference]: Without dead ends: 93 [2024-11-13 16:19:19,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:19,880 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 49 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:19,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 72 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:19:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-13 16:19:19,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-11-13 16:19:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 61 states have (on average 1.540983606557377) internal successors, (94), 84 states have internal predecessors, (94), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:19,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2024-11-13 16:19:19,907 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 19 [2024-11-13 16:19:19,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:19,908 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2024-11-13 16:19:19,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-13 16:19:19,908 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2024-11-13 16:19:19,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 16:19:19,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:19,913 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:19,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:19:20,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:20,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:20,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:20,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1624416110, now seen corresponding path program 1 times [2024-11-13 16:19:20,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:20,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422975458] [2024-11-13 16:19:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:20,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:19:20,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803645091] [2024-11-13 16:19:20,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:20,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:20,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:20,139 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:20,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:19:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:20,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:19:20,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:20,293 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:20,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:20,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422975458] [2024-11-13 16:19:20,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:19:20,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803645091] [2024-11-13 16:19:20,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803645091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:20,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:20,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:19:20,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083566741] [2024-11-13 16:19:20,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:20,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:19:20,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:20,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:19:20,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:19:20,296 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-13 16:19:20,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:20,470 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2024-11-13 16:19:20,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:19:20,471 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), 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 22 [2024-11-13 16:19:20,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:20,472 INFO L225 Difference]: With dead ends: 95 [2024-11-13 16:19:20,472 INFO L226 Difference]: Without dead ends: 93 [2024-11-13 16:19:20,473 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 [2024-11-13 16:19:20,474 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:20,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 75 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:19:20,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-13 16:19:20,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-11-13 16:19:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 84 states have internal predecessors, (92), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2024-11-13 16:19:20,485 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 22 [2024-11-13 16:19:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:20,486 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2024-11-13 16:19:20,486 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), 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) [2024-11-13 16:19:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2024-11-13 16:19:20,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 16:19:20,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:20,487 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:20,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 16:19:20,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 16:19:20,688 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:20,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:20,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1182708202, now seen corresponding path program 1 times [2024-11-13 16:19:20,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:20,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276598898] [2024-11-13 16:19:20,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:20,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:20,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:20,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:20,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:19:20,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:20,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276598898] [2024-11-13 16:19:20,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276598898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:20,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879041638] [2024-11-13 16:19:20,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:20,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:20,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:20,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:20,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:19:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:21,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:19:21,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:21,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:21,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:21,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879041638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:21,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:19:21,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-11-13 16:19:21,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490695896] [2024-11-13 16:19:21,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:21,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:19:21,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:21,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:19:21,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:19:21,172 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-13 16:19:21,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:21,491 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2024-11-13 16:19:21,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:19:21,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 23 [2024-11-13 16:19:21,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:21,493 INFO L225 Difference]: With dead ends: 95 [2024-11-13 16:19:21,493 INFO L226 Difference]: Without dead ends: 93 [2024-11-13 16:19:21,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:19:21,494 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:21,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 77 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:19:21,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-13 16:19:21,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-11-13 16:19:21,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 84 states have internal predecessors, (90), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2024-11-13 16:19:21,504 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 23 [2024-11-13 16:19:21,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:21,507 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2024-11-13 16:19:21,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-13 16:19:21,511 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2024-11-13 16:19:21,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 16:19:21,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:21,513 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:21,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 16:19:21,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:21,717 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:21,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash -767901599, now seen corresponding path program 1 times [2024-11-13 16:19:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:21,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609141239] [2024-11-13 16:19:21,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:21,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:21,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:21,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:21,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:19:21,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:21,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609141239] [2024-11-13 16:19:21,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609141239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:21,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761743505] [2024-11-13 16:19:21,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:21,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:21,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:21,992 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:21,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:19:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:22,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:19:22,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:22,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:19:22,137 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:19:22,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761743505] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:19:22,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:19:22,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-13 16:19:22,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833208588] [2024-11-13 16:19:22,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:22,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:19:22,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:22,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:19:22,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:19:22,301 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:19:22,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:22,504 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2024-11-13 16:19:22,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:19:22,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 32 [2024-11-13 16:19:22,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:22,507 INFO L225 Difference]: With dead ends: 91 [2024-11-13 16:19:22,507 INFO L226 Difference]: Without dead ends: 90 [2024-11-13 16:19:22,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:19:22,508 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 32 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:22,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 125 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:19:22,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-13 16:19:22,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-13 16:19:22,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 83 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-11-13 16:19:22,527 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 32 [2024-11-13 16:19:22,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:22,527 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-11-13 16:19:22,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:19:22,527 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-11-13 16:19:22,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 16:19:22,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:22,528 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:22,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 16:19:22,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:22,732 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:22,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:22,732 INFO L85 PathProgramCache]: Analyzing trace with hash -767901556, now seen corresponding path program 1 times [2024-11-13 16:19:22,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:22,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638636840] [2024-11-13 16:19:22,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:22,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:22,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:22,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:22,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:22,821 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:22,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:22,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638636840] [2024-11-13 16:19:22,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638636840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:22,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:22,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:19:22,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172578377] [2024-11-13 16:19:22,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:22,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:19:22,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:22,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:19:22,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:19:22,822 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-11-13 16:19:22,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:22,864 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2024-11-13 16:19:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:19:22,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 32 [2024-11-13 16:19:22,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:22,865 INFO L225 Difference]: With dead ends: 92 [2024-11-13 16:19:22,865 INFO L226 Difference]: Without dead ends: 90 [2024-11-13 16:19:22,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:19:22,866 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:22,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 124 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:19:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-13 16:19:22,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-13 16:19:22,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 83 states have internal predecessors, (86), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:22,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2024-11-13 16:19:22,883 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 32 [2024-11-13 16:19:22,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:22,884 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2024-11-13 16:19:22,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-11-13 16:19:22,884 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2024-11-13 16:19:22,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-13 16:19:22,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:22,885 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:19:22,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:19:22,885 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:22,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:22,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1134731483, now seen corresponding path program 1 times [2024-11-13 16:19:22,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:22,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853985010] [2024-11-13 16:19:22,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:22,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:23,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:23,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:23,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:23,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:23,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:23,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853985010] [2024-11-13 16:19:23,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853985010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:23,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:23,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:19:23,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053774029] [2024-11-13 16:19:23,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:23,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:19:23,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:23,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:19:23,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:23,067 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2024-11-13 16:19:23,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:23,638 INFO L93 Difference]: Finished difference Result 123 states and 144 transitions. [2024-11-13 16:19:23,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:19:23,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 36 [2024-11-13 16:19:23,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:23,643 INFO L225 Difference]: With dead ends: 123 [2024-11-13 16:19:23,643 INFO L226 Difference]: Without dead ends: 122 [2024-11-13 16:19:23,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:23,644 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 39 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:23,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 105 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:19:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-13 16:19:23,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 91. [2024-11-13 16:19:23,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 62 states have (on average 1.403225806451613) internal successors, (87), 84 states have internal predecessors, (87), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2024-11-13 16:19:23,662 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 36 [2024-11-13 16:19:23,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:23,662 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2024-11-13 16:19:23,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2024-11-13 16:19:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2024-11-13 16:19:23,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 16:19:23,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:23,666 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:19:23,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 16:19:23,668 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:23,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:23,669 INFO L85 PathProgramCache]: Analyzing trace with hash -816937504, now seen corresponding path program 1 times [2024-11-13 16:19:23,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:23,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302129812] [2024-11-13 16:19:23,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:23,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:23,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:23,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:23,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:23,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:23,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302129812] [2024-11-13 16:19:23,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302129812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:23,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:23,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:19:23,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101905678] [2024-11-13 16:19:23,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:23,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:19:23,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:19:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:23,810 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-13 16:19:24,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:24,227 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2024-11-13 16:19:24,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:19:24,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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 37 [2024-11-13 16:19:24,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:24,229 INFO L225 Difference]: With dead ends: 93 [2024-11-13 16:19:24,229 INFO L226 Difference]: Without dead ends: 92 [2024-11-13 16:19:24,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:24,230 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 14 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:24,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 113 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 16:19:24,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-13 16:19:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-13 16:19:24,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 85 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2024-11-13 16:19:24,243 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 37 [2024-11-13 16:19:24,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:24,244 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2024-11-13 16:19:24,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-13 16:19:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2024-11-13 16:19:24,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-13 16:19:24,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:24,247 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:19:24,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:19:24,248 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:24,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:24,248 INFO L85 PathProgramCache]: Analyzing trace with hash 444741255, now seen corresponding path program 1 times [2024-11-13 16:19:24,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:24,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909117458] [2024-11-13 16:19:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:24,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:24,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:24,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:24,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:24,402 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:24,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:24,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909117458] [2024-11-13 16:19:24,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909117458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:24,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:24,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:19:24,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619195306] [2024-11-13 16:19:24,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:24,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:19:24,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:24,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:19:24,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:24,405 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-13 16:19:25,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:25,066 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2024-11-13 16:19:25,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:19:25,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 38 [2024-11-13 16:19:25,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:25,068 INFO L225 Difference]: With dead ends: 101 [2024-11-13 16:19:25,068 INFO L226 Difference]: Without dead ends: 99 [2024-11-13 16:19:25,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:25,069 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 17 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:25,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 83 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 16:19:25,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-13 16:19:25,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2024-11-13 16:19:25,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 70 states have (on average 1.4) internal successors, (98), 91 states have internal predecessors, (98), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2024-11-13 16:19:25,078 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 38 [2024-11-13 16:19:25,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:25,079 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2024-11-13 16:19:25,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-13 16:19:25,079 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2024-11-13 16:19:25,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-13 16:19:25,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:25,080 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:19:25,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:19:25,080 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:25,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:25,081 INFO L85 PathProgramCache]: Analyzing trace with hash -609391790, now seen corresponding path program 1 times [2024-11-13 16:19:25,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:25,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676012372] [2024-11-13 16:19:25,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:25,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:19:25,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860782808] [2024-11-13 16:19:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:25,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:25,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:25,102 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:25,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 16:19:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:25,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:19:25,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:25,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:19:25,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:25,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:25,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676012372] [2024-11-13 16:19:25,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:19:25,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860782808] [2024-11-13 16:19:25,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860782808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:25,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:19:25,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-13 16:19:25,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100077357] [2024-11-13 16:19:25,671 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:25,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:19:25,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:25,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:19:25,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:19:25,674 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:25,838 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2024-11-13 16:19:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:19:25,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-11-13 16:19:25,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:25,840 INFO L225 Difference]: With dead ends: 98 [2024-11-13 16:19:25,841 INFO L226 Difference]: Without dead ends: 97 [2024-11-13 16:19:25,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:19:25,842 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 19 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:25,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 99 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:19:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-13 16:19:25,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-13 16:19:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 90 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:25,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2024-11-13 16:19:25,855 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 38 [2024-11-13 16:19:25,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:25,856 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2024-11-13 16:19:25,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:25,856 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2024-11-13 16:19:25,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 16:19:25,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:25,857 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:19:25,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 16:19:26,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 16:19:26,063 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:26,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:26,064 INFO L85 PathProgramCache]: Analyzing trace with hash 902077122, now seen corresponding path program 1 times [2024-11-13 16:19:26,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:26,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327794391] [2024-11-13 16:19:26,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:26,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:26,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:26,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:26,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:26,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:26,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327794391] [2024-11-13 16:19:26,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327794391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:26,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:26,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:19:26,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828360982] [2024-11-13 16:19:26,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:26,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:19:26,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:26,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:19:26,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:26,184 INFO L87 Difference]: Start difference. First operand 97 states and 105 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, (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) [2024-11-13 16:19:26,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:26,875 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2024-11-13 16:19:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:19:26,876 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, (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 39 [2024-11-13 16:19:26,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:26,877 INFO L225 Difference]: With dead ends: 99 [2024-11-13 16:19:26,878 INFO L226 Difference]: Without dead ends: 90 [2024-11-13 16:19:26,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:26,879 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 19 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:26,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 85 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 16:19:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-13 16:19:26,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-13 16:19:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 83 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-11-13 16:19:26,888 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 39 [2024-11-13 16:19:26,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:26,888 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-11-13 16:19:26,888 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, (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) [2024-11-13 16:19:26,888 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-11-13 16:19:26,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 16:19:26,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:26,891 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:19:26,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 16:19:26,891 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:26,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1711276220, now seen corresponding path program 1 times [2024-11-13 16:19:26,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:26,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847685204] [2024-11-13 16:19:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:26,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:19:26,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309336080] [2024-11-13 16:19:26,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:26,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:26,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:26,914 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:26,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 16:19:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:26,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:19:26,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:19:27,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:28,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:28,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847685204] [2024-11-13 16:19:28,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:19:28,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309336080] [2024-11-13 16:19:28,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309336080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:28,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:19:28,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-13 16:19:28,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35331621] [2024-11-13 16:19:28,284 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:28,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:19:28,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:28,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:19:28,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:19:28,286 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:28,523 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2024-11-13 16:19:28,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:19:28,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-11-13 16:19:28,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:28,525 INFO L225 Difference]: With dead ends: 93 [2024-11-13 16:19:28,525 INFO L226 Difference]: Without dead ends: 92 [2024-11-13 16:19:28,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:19:28,526 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 60 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:28,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 111 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:19:28,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-13 16:19:28,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-13 16:19:28,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 85 states have internal predecessors, (90), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2024-11-13 16:19:28,534 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 39 [2024-11-13 16:19:28,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:28,534 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2024-11-13 16:19:28,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2024-11-13 16:19:28,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-13 16:19:28,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:28,536 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:28,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 16:19:28,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 16:19:28,740 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:28,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:28,741 INFO L85 PathProgramCache]: Analyzing trace with hash 631972293, now seen corresponding path program 1 times [2024-11-13 16:19:28,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:28,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628953556] [2024-11-13 16:19:28,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:28,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:28,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:28,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:28,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:28,848 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:28,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:28,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628953556] [2024-11-13 16:19:28,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628953556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:28,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413855377] [2024-11-13 16:19:28,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:28,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:28,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:28,853 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:28,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 16:19:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:28,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:19:28,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:29,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:29,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413855377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:29,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:19:29,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-13 16:19:29,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400404293] [2024-11-13 16:19:29,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:29,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:19:29,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:29,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:19:29,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:19:29,039 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 16:19:29,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:29,114 INFO L93 Difference]: Finished difference Result 96 states and 98 transitions. [2024-11-13 16:19:29,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:19:29,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-13 16:19:29,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:29,116 INFO L225 Difference]: With dead ends: 96 [2024-11-13 16:19:29,116 INFO L226 Difference]: Without dead ends: 95 [2024-11-13 16:19:29,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:19:29,117 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 37 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:29,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 211 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:19:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-13 16:19:29,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2024-11-13 16:19:29,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 84 states have internal predecessors, (89), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2024-11-13 16:19:29,146 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 42 [2024-11-13 16:19:29,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:29,146 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2024-11-13 16:19:29,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 16:19:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2024-11-13 16:19:29,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 16:19:29,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:29,148 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:29,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 16:19:29,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 16:19:29,349 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:29,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:29,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1734986375, now seen corresponding path program 1 times [2024-11-13 16:19:29,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:29,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22377393] [2024-11-13 16:19:29,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:29,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:19:29,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349098890] [2024-11-13 16:19:29,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:29,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:29,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:29,370 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:29,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 16:19:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:29,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 16:19:29,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:29,792 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:19:29,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:30,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:30,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22377393] [2024-11-13 16:19:30,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:19:30,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349098890] [2024-11-13 16:19:30,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349098890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:30,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:19:30,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-13 16:19:30,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799618574] [2024-11-13 16:19:30,178 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:30,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:19:30,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:30,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:19:30,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:19:30,179 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:30,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:30,406 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2024-11-13 16:19:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:19:30,406 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2024-11-13 16:19:30,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:30,407 INFO L225 Difference]: With dead ends: 91 [2024-11-13 16:19:30,407 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 16:19:30,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:19:30,408 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 21 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:30,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 169 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:19:30,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 16:19:30,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-13 16:19:30,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 79 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:30,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2024-11-13 16:19:30,416 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 44 [2024-11-13 16:19:30,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:30,416 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2024-11-13 16:19:30,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:30,416 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2024-11-13 16:19:30,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 16:19:30,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:30,417 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:30,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 16:19:30,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 16:19:30,618 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:30,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:30,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2049997171, now seen corresponding path program 1 times [2024-11-13 16:19:30,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:30,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378412117] [2024-11-13 16:19:30,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:30,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:19:30,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621709767] [2024-11-13 16:19:30,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:30,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:30,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:30,634 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:30,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 16:19:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:30,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 16:19:30,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:19:30,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:31,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:31,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378412117] [2024-11-13 16:19:31,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:19:31,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621709767] [2024-11-13 16:19:31,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621709767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:31,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:19:31,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-13 16:19:31,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091597954] [2024-11-13 16:19:31,657 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:31,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:19:31,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:31,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:19:31,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:19:31,658 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 8 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:31,834 INFO L93 Difference]: Finished difference Result 121 states and 133 transitions. [2024-11-13 16:19:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:19:31,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2024-11-13 16:19:31,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:31,836 INFO L225 Difference]: With dead ends: 121 [2024-11-13 16:19:31,836 INFO L226 Difference]: Without dead ends: 116 [2024-11-13 16:19:31,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:19:31,837 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 69 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:31,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 134 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:19:31,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-13 16:19:31,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2024-11-13 16:19:31,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 92 states have (on average 1.2717391304347827) internal successors, (117), 106 states have internal predecessors, (117), 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) [2024-11-13 16:19:31,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 127 transitions. [2024-11-13 16:19:31,846 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 127 transitions. Word has length 45 [2024-11-13 16:19:31,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:31,846 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 127 transitions. [2024-11-13 16:19:31,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:31,846 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 127 transitions. [2024-11-13 16:19:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 16:19:31,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:31,847 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:31,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 16:19:32,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 16:19:32,049 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:32,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:32,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1343817546, now seen corresponding path program 1 times [2024-11-13 16:19:32,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:32,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905329480] [2024-11-13 16:19:32,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:32,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:32,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:32,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:32,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:32,125 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:19:32,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:32,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905329480] [2024-11-13 16:19:32,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905329480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:32,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:32,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:19:32,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231088808] [2024-11-13 16:19:32,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:32,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:19:32,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:19:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:32,127 INFO L87 Difference]: Start difference. First operand 114 states and 127 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 16:19:32,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:32,695 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2024-11-13 16:19:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:19:32,695 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-13 16:19:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:32,696 INFO L225 Difference]: With dead ends: 114 [2024-11-13 16:19:32,696 INFO L226 Difference]: Without dead ends: 113 [2024-11-13 16:19:32,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:32,697 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 48 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:32,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 78 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:19:32,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-13 16:19:32,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-13 16:19:32,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.25) internal successors, (115), 105 states have internal predecessors, (115), 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) [2024-11-13 16:19:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2024-11-13 16:19:32,708 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 48 [2024-11-13 16:19:32,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:32,708 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2024-11-13 16:19:32,708 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 16:19:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2024-11-13 16:19:32,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 16:19:32,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:32,709 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-11-13 16:19:32,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 16:19:32,710 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:32,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:32,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1325685749, now seen corresponding path program 1 times [2024-11-13 16:19:32,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:32,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036604105] [2024-11-13 16:19:32,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:32,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:19:32,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335427345] [2024-11-13 16:19:32,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:32,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:32,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:32,730 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:32,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 16:19:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:32,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 16:19:32,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:33,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:33,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:33,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:33,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036604105] [2024-11-13 16:19:33,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:19:33,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335427345] [2024-11-13 16:19:33,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335427345] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:19:33,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:19:33,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-13 16:19:33,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586013962] [2024-11-13 16:19:33,510 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:33,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:19:33,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:33,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:19:33,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:19:33,512 INFO L87 Difference]: Start difference. First operand 113 states and 125 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:19:35,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:35,555 INFO L93 Difference]: Finished difference Result 133 states and 146 transitions. [2024-11-13 16:19:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:19:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2024-11-13 16:19:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:35,558 INFO L225 Difference]: With dead ends: 133 [2024-11-13 16:19:35,558 INFO L226 Difference]: Without dead ends: 130 [2024-11-13 16:19:35,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:19:35,559 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 35 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:35,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 163 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 16:19:35,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-13 16:19:35,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 124. [2024-11-13 16:19:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 103 states have (on average 1.233009708737864) internal successors, (127), 116 states have internal predecessors, (127), 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) [2024-11-13 16:19:35,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 137 transitions. [2024-11-13 16:19:35,575 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 137 transitions. Word has length 48 [2024-11-13 16:19:35,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:35,576 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 137 transitions. [2024-11-13 16:19:35,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:19:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 137 transitions. [2024-11-13 16:19:35,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 16:19:35,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:35,577 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:35,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 16:19:35,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:35,781 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:35,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1291329135, now seen corresponding path program 1 times [2024-11-13 16:19:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:35,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515065122] [2024-11-13 16:19:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:35,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:35,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:35,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:35,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:35,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:35,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515065122] [2024-11-13 16:19:35,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515065122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:35,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857771552] [2024-11-13 16:19:35,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:35,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:35,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:35,888 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:35,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 16:19:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:35,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:19:35,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:36,045 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:36,165 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:36,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857771552] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:19:36,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:19:36,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-11-13 16:19:36,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729085364] [2024-11-13 16:19:36,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:36,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:19:36,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:36,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:19:36,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:19:36,167 INFO L87 Difference]: Start difference. First operand 124 states and 137 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 16:19:36,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:36,356 INFO L93 Difference]: Finished difference Result 188 states and 193 transitions. [2024-11-13 16:19:36,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:19:36,357 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 49 [2024-11-13 16:19:36,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:36,358 INFO L225 Difference]: With dead ends: 188 [2024-11-13 16:19:36,358 INFO L226 Difference]: Without dead ends: 172 [2024-11-13 16:19:36,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:19:36,359 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 70 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:36,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 247 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:19:36,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-13 16:19:36,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 149. [2024-11-13 16:19:36,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 124 states have (on average 1.2419354838709677) internal successors, (154), 137 states have internal predecessors, (154), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:19:36,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 166 transitions. [2024-11-13 16:19:36,374 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 166 transitions. Word has length 49 [2024-11-13 16:19:36,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:36,375 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 166 transitions. [2024-11-13 16:19:36,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-13 16:19:36,375 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 166 transitions. [2024-11-13 16:19:36,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 16:19:36,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:36,376 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:19:36,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 16:19:36,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-13 16:19:36,577 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:36,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:36,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1251360571, now seen corresponding path program 1 times [2024-11-13 16:19:36,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:36,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920654149] [2024-11-13 16:19:36,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:36,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:36,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:36,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:36,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:36,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 16:19:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:19:36,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:36,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920654149] [2024-11-13 16:19:36,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920654149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:36,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226565340] [2024-11-13 16:19:36,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:36,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:36,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:36,662 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:36,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 16:19:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:36,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:19:36,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:19:36,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:36,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226565340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:36,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:19:36,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-13 16:19:36,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162819640] [2024-11-13 16:19:36,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:36,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:19:36,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:36,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:19:36,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:36,810 INFO L87 Difference]: Start difference. First operand 149 states and 166 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:19:36,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:36,844 INFO L93 Difference]: Finished difference Result 151 states and 166 transitions. [2024-11-13 16:19:36,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:19:36,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 58 [2024-11-13 16:19:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:36,846 INFO L225 Difference]: With dead ends: 151 [2024-11-13 16:19:36,846 INFO L226 Difference]: Without dead ends: 150 [2024-11-13 16:19:36,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:36,850 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 41 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:36,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 106 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:19:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-13 16:19:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-11-13 16:19:36,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 124 states have (on average 1.217741935483871) internal successors, (151), 136 states have internal predecessors, (151), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:19:36,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 163 transitions. [2024-11-13 16:19:36,864 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 163 transitions. Word has length 58 [2024-11-13 16:19:36,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:36,865 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 163 transitions. [2024-11-13 16:19:36,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:19:36,865 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 163 transitions. [2024-11-13 16:19:36,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 16:19:36,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:36,867 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:19:36,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 16:19:37,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:37,068 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:37,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash -137471963, now seen corresponding path program 1 times [2024-11-13 16:19:37,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:37,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587511203] [2024-11-13 16:19:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:37,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:37,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:37,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:37,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:37,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 16:19:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:19:37,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:19:37,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587511203] [2024-11-13 16:19:37,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587511203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:19:37,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861203082] [2024-11-13 16:19:37,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:37,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:37,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:37,190 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:37,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 16:19:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:37,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:19:37,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:19:37,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:19:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:19:37,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861203082] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:19:37,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:19:37,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-13 16:19:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632931282] [2024-11-13 16:19:37,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:19:37,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:19:37,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:19:37,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:19:37,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:19:37,455 INFO L87 Difference]: Start difference. First operand 148 states and 163 transitions. Second operand has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-13 16:19:37,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:37,519 INFO L93 Difference]: Finished difference Result 174 states and 183 transitions. [2024-11-13 16:19:37,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:19:37,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 59 [2024-11-13 16:19:37,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:37,521 INFO L225 Difference]: With dead ends: 174 [2024-11-13 16:19:37,521 INFO L226 Difference]: Without dead ends: 173 [2024-11-13 16:19:37,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:19:37,522 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 19 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:37,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 255 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:19:37,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-13 16:19:37,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2024-11-13 16:19:37,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 135 states have (on average 1.2296296296296296) internal successors, (166), 147 states have internal predecessors, (166), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 16:19:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 180 transitions. [2024-11-13 16:19:37,549 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 180 transitions. Word has length 59 [2024-11-13 16:19:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:37,549 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 180 transitions. [2024-11-13 16:19:37,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-13 16:19:37,550 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 180 transitions. [2024-11-13 16:19:37,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 16:19:37,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:37,550 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-11-13 16:19:37,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 16:19:37,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:37,756 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:37,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:37,756 INFO L85 PathProgramCache]: Analyzing trace with hash -222052025, now seen corresponding path program 1 times [2024-11-13 16:19:37,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:19:37,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254337521] [2024-11-13 16:19:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:37,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:19:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:38,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:19:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:38,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 16:19:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:38,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:19:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:19:38,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 16:19:38,071 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig$NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:222) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 16:19:38,080 INFO L158 Benchmark]: Toolchain (without parser) took 22042.97ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 61.5MB in the end (delta: 55.1MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2024-11-13 16:19:38,081 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:19:38,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.92ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 105.4MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:19:38,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.65ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:19:38,082 INFO L158 Benchmark]: Boogie Preprocessor took 56.97ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 102.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:19:38,083 INFO L158 Benchmark]: RCFGBuilder took 763.02ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 89.1MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:19:38,083 INFO L158 Benchmark]: TraceAbstraction took 20825.65ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 61.5MB in the end (delta: 26.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-11-13 16:19:38,085 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.92ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 105.4MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.65ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.97ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 102.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 763.02ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 89.1MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 20825.65ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 61.5MB in the end (delta: 26.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-13 16:19:38,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6730d7e2d0ed6d5662ed2cfed2073e9880e52e7f1f28b9287feb3ffdee545a5a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:19:41,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:19:41,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-13 16:19:41,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:19:41,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:19:41,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:19:41,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:19:41,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:19:41,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:19:41,803 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:19:41,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:19:41,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:19:41,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:19:41,804 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:19:41,804 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:19:41,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:19:41,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:19:41,805 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:19:41,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:19:41,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:19:41,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:19:41,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:19:41,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:19:41,806 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:19:41,806 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:19:41,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:19:41,806 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:19:41,806 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:19:41,806 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:19:41,806 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:19:41,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:19:41,807 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:19:41,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:19:41,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:19:41,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:19:41,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:19:41,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:19:41,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:19:41,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:19:41,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:19:41,808 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 16:19:41,808 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:19:41,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:19:41,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:19:41,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:19:41,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:19:41,808 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> 6730d7e2d0ed6d5662ed2cfed2073e9880e52e7f1f28b9287feb3ffdee545a5a [2024-11-13 16:19:42,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:19:42,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:19:42,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:19:42,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:19:42,232 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:19:42,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound50.c Unable to find full path for "g++" [2024-11-13 16:19:44,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:19:44,923 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:19:44,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound50.c [2024-11-13 16:19:44,936 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/data/9cc0f31c9/743e1cc11ba04ddb93dddb4b3771cf0a/FLAG7220ea2c1 [2024-11-13 16:19:44,968 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/data/9cc0f31c9/743e1cc11ba04ddb93dddb4b3771cf0a [2024-11-13 16:19:44,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:19:44,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:19:44,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:19:44,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:19:44,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:19:44,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:19:44" (1/1) ... [2024-11-13 16:19:44,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40166bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:44, skipping insertion in model container [2024-11-13 16:19:44,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:19:44" (1/1) ... [2024-11-13 16:19:45,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:19:45,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:19:45,285 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:19:45,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:19:45,352 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:19:45,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45 WrapperNode [2024-11-13 16:19:45,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:19:45,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:19:45,355 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:19:45,355 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:19:45,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,421 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2024-11-13 16:19:45,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:19:45,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:19:45,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:19:45,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:19:45,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,467 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 16:19:45,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:19:45,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:19:45,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:19:45,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:19:45,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (1/1) ... [2024-11-13 16:19:45,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:19:45,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:45,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:19:45,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:19:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:19:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 16:19:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 16:19:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 16:19:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:19:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:19:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:19:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:19:45,691 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:19:45,693 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:19:57,075 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-13 16:19:57,075 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:19:57,090 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:19:57,091 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:19:57,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:19:57 BoogieIcfgContainer [2024-11-13 16:19:57,091 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:19:57,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:19:57,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:19:57,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:19:57,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:19:44" (1/3) ... [2024-11-13 16:19:57,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dfb2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:19:57, skipping insertion in model container [2024-11-13 16:19:57,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:19:45" (2/3) ... [2024-11-13 16:19:57,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dfb2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:19:57, skipping insertion in model container [2024-11-13 16:19:57,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:19:57" (3/3) ... [2024-11-13 16:19:57,106 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll2_unwindbound50.c [2024-11-13 16:19:57,127 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:19:57,129 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG geo1-ll2_unwindbound50.c that has 3 procedures, 76 locations, 1 initial locations, 1 loop locations, and 26 error locations. [2024-11-13 16:19:57,200 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:19:57,215 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=PETRI_NET, 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;@20200a12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:19:57,216 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-13 16:19:57,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 69 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:19:57,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 16:19:57,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:57,231 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:57,232 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:57,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash 848456127, now seen corresponding path program 1 times [2024-11-13 16:19:57,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:19:57,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654206081] [2024-11-13 16:19:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:57,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:57,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:57,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:57,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:19:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:57,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 16:19:57,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:57,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:19:57,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:57,398 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:19:57,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654206081] [2024-11-13 16:19:57,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654206081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:57,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:57,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:19:57,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964278480] [2024-11-13 16:19:57,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:57,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:19:57,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:19:57,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:19:57,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:19:57,435 INFO L87 Difference]: Start difference. First operand has 76 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 69 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:19:57,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:57,463 INFO L93 Difference]: Finished difference Result 142 states and 163 transitions. [2024-11-13 16:19:57,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:19:57,465 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-13 16:19:57,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:57,474 INFO L225 Difference]: With dead ends: 142 [2024-11-13 16:19:57,474 INFO L226 Difference]: Without dead ends: 63 [2024-11-13 16:19:57,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:19:57,481 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:57,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:19:57,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-13 16:19:57,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-13 16:19:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 57 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:57,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2024-11-13 16:19:57,533 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 15 [2024-11-13 16:19:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:57,533 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2024-11-13 16:19:57,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:19:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2024-11-13 16:19:57,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 16:19:57,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:57,536 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:57,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:19:57,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:57,742 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:57,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:57,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1729458292, now seen corresponding path program 1 times [2024-11-13 16:19:57,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:19:57,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118284670] [2024-11-13 16:19:57,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:57,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:57,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:57,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:57,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:19:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:57,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:19:57,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:58,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:19:58,065 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:19:58,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:19:58,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118284670] [2024-11-13 16:19:58,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118284670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:19:58,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:19:58,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:19:58,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424819105] [2024-11-13 16:19:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:19:58,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:19:58,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:19:58,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:19:58,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:19:58,070 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-13 16:19:58,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:19:58,196 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2024-11-13 16:19:58,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:19:58,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 16 [2024-11-13 16:19:58,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:19:58,198 INFO L225 Difference]: With dead ends: 82 [2024-11-13 16:19:58,199 INFO L226 Difference]: Without dead ends: 67 [2024-11-13 16:19:58,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:19:58,200 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 3 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:19:58,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 171 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:19:58,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-13 16:19:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-13 16:19:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.5) internal successors, (63), 61 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:19:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2024-11-13 16:19:58,225 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 16 [2024-11-13 16:19:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:19:58,227 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2024-11-13 16:19:58,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-13 16:19:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2024-11-13 16:19:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 16:19:58,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:19:58,230 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:19:58,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 16:19:58,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:58,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:19:58,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:19:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash 142926478, now seen corresponding path program 1 times [2024-11-13 16:19:58,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:19:58,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1052653530] [2024-11-13 16:19:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:19:58,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:19:58,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:19:58,436 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:19:58,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:19:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:19:58,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:19:58,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:19:58,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:19:58,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:20:06,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:20:06,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:20:06,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052653530] [2024-11-13 16:20:06,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052653530] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:20:06,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:20:06,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 16:20:06,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115550738] [2024-11-13 16:20:06,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:20:06,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:20:06,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:20:06,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:20:06,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:20:06,464 INFO L87 Difference]: Start difference. First operand 67 states and 69 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 16:20:09,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:11,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:14,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:24,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:28,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:34,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:38,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:41,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:48,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:52,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:56,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:20:59,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:05,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:06,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:06,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:21:06,503 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2024-11-13 16:21:06,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:21:06,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 18 [2024-11-13 16:21:06,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:21:06,550 INFO L225 Difference]: With dead ends: 73 [2024-11-13 16:21:06,550 INFO L226 Difference]: Without dead ends: 71 [2024-11-13 16:21:06,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:21:06,551 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 19 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:21:06,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 57 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 60.0s Time] [2024-11-13 16:21:06,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-13 16:21:06,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2024-11-13 16:21:06,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 61 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:21:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2024-11-13 16:21:06,561 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 18 [2024-11-13 16:21:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:21:06,561 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2024-11-13 16:21:06,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 16:21:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2024-11-13 16:21:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 16:21:06,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:21:06,563 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:21:06,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 16:21:06,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:21:06,764 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:21:06,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:21:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash 135753574, now seen corresponding path program 1 times [2024-11-13 16:21:06,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:21:06,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32401644] [2024-11-13 16:21:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:06,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:21:06,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:21:06,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:21:06,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:21:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:21:06,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:21:06,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:21:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:21:07,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:21:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:21:18,969 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:21:18,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32401644] [2024-11-13 16:21:18,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32401644] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:21:18,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:21:18,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 16:21:18,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379573752] [2024-11-13 16:21:18,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:21:18,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:21:18,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:21:18,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:21:18,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:21:18,971 INFO L87 Difference]: Start difference. First operand 67 states and 69 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) [2024-11-13 16:21:23,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:24,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:27,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:29,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:30,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:31,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:36,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:38,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:43,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:47,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:51,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:55,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:21:57,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:06,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:10,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:11,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:13,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:14,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:18,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:18,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:22:18,644 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2024-11-13 16:22:18,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:22:18,677 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 19 [2024-11-13 16:22:18,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:22:18,678 INFO L225 Difference]: With dead ends: 73 [2024-11-13 16:22:18,678 INFO L226 Difference]: Without dead ends: 71 [2024-11-13 16:22:18,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:22:18,679 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 18 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:22:18,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 59 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 4 Unknown, 0 Unchecked, 59.7s Time] [2024-11-13 16:22:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-13 16:22:18,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2024-11-13 16:22:18,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 61 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:22:18,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2024-11-13 16:22:18,688 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 19 [2024-11-13 16:22:18,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:22:18,689 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2024-11-13 16:22:18,689 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) [2024-11-13 16:22:18,689 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2024-11-13 16:22:18,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 16:22:18,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:22:18,690 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:22:18,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 16:22:18,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:22:18,891 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:22:18,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:22:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash -86606448, now seen corresponding path program 1 times [2024-11-13 16:22:18,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:22:18,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591518722] [2024-11-13 16:22:18,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:22:18,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:22:18,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:22:18,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:22:18,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:22:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:22:19,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:22:19,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:22:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:22:19,539 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:22:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:22:21,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:22:21,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591518722] [2024-11-13 16:22:21,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591518722] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:22:21,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:22:21,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 16:22:21,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113704422] [2024-11-13 16:22:21,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:22:21,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:22:21,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:22:21,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:22:21,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:22:21,670 INFO L87 Difference]: Start difference. First operand 67 states and 69 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-13 16:22:23,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:24,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:29,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:33,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:37,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:40,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:41,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:22:41,721 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2024-11-13 16:22:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:22:41,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 20 [2024-11-13 16:22:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:22:41,728 INFO L225 Difference]: With dead ends: 73 [2024-11-13 16:22:41,728 INFO L226 Difference]: Without dead ends: 72 [2024-11-13 16:22:41,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:22:41,730 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 17 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:22:41,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 57 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2024-11-13 16:22:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-13 16:22:41,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2024-11-13 16:22:41,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 62 states have internal predecessors, (64), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:22:41,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2024-11-13 16:22:41,740 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 20 [2024-11-13 16:22:41,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:22:41,740 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2024-11-13 16:22:41,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-13 16:22:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2024-11-13 16:22:41,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 16:22:41,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:22:41,741 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:22:41,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 16:22:41,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:22:41,942 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:22:41,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:22:41,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1610167464, now seen corresponding path program 1 times [2024-11-13 16:22:41,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:22:41,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350520070] [2024-11-13 16:22:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:22:41,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:22:41,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:22:41,947 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:22:41,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 16:22:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:22:42,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:22:42,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:22:42,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:22:42,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:22:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:22:44,266 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:22:44,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350520070] [2024-11-13 16:22:44,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350520070] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:22:44,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:22:44,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 16:22:44,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684127412] [2024-11-13 16:22:44,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:22:44,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:22:44,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:22:44,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:22:44,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:22:44,267 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-13 16:22:45,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:56,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:22:59,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:23:00,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:23:00,554 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2024-11-13 16:23:00,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:23:00,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 21 [2024-11-13 16:23:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:23:00,565 INFO L225 Difference]: With dead ends: 74 [2024-11-13 16:23:00,565 INFO L226 Difference]: Without dead ends: 73 [2024-11-13 16:23:00,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:23:00,566 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 16 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:23:00,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 58 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2024-11-13 16:23:00,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-13 16:23:00,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2024-11-13 16:23:00,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 63 states have internal predecessors, (65), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:23:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2024-11-13 16:23:00,589 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 21 [2024-11-13 16:23:00,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:23:00,593 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2024-11-13 16:23:00,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-13 16:23:00,593 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2024-11-13 16:23:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 16:23:00,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:23:00,594 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:23:00,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 16:23:00,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:23:00,795 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:23:00,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:23:00,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1624416110, now seen corresponding path program 1 times [2024-11-13 16:23:00,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:23:00,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717131277] [2024-11-13 16:23:00,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:23:00,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:23:00,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:23:00,798 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:23:00,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 16:23:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:23:00,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:23:00,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:23:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:23:01,832 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:23:05,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:23:05,122 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:23:05,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717131277] [2024-11-13 16:23:05,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717131277] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:23:05,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:23:05,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 16:23:05,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043374621] [2024-11-13 16:23:05,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:23:05,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:23:05,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:23:05,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:23:05,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:23:05,124 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-13 16:23:14,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:23:16,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:23:18,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:23:20,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:23:22,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:23:22,122 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2024-11-13 16:23:22,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:23:22,129 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), 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 22 [2024-11-13 16:23:22,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:23:22,130 INFO L225 Difference]: With dead ends: 75 [2024-11-13 16:23:22,130 INFO L226 Difference]: Without dead ends: 74 [2024-11-13 16:23:22,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:23:22,131 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 15 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:23:22,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 59 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2024-11-13 16:23:22,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-13 16:23:22,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2024-11-13 16:23:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 64 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:23:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2024-11-13 16:23:22,139 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 22 [2024-11-13 16:23:22,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:23:22,139 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2024-11-13 16:23:22,139 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), 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) [2024-11-13 16:23:22,139 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2024-11-13 16:23:22,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 16:23:22,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:23:22,140 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:23:22,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 16:23:22,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:23:22,341 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:23:22,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:23:22,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1182708202, now seen corresponding path program 1 times [2024-11-13 16:23:22,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:23:22,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1897890630] [2024-11-13 16:23:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:23:22,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:23:22,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:23:22,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:23:22,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 16:23:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:23:22,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:23:22,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:23:23,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:23:23,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:23:26,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:23:26,728 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:23:26,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897890630] [2024-11-13 16:23:26,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897890630] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:23:26,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:23:26,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 16:23:26,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232924233] [2024-11-13 16:23:26,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:23:26,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:23:26,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:23:26,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:23:26,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:23:26,730 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-13 16:23:31,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:23:40,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:23:41,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:23:43,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:23:43,278 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2024-11-13 16:23:43,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:23:43,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 23 [2024-11-13 16:23:43,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:23:43,284 INFO L225 Difference]: With dead ends: 76 [2024-11-13 16:23:43,284 INFO L226 Difference]: Without dead ends: 75 [2024-11-13 16:23:43,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:23:43,285 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 14 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:23:43,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 60 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 16.5s Time] [2024-11-13 16:23:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-13 16:23:43,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2024-11-13 16:23:43,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 65 states have internal predecessors, (67), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:23:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2024-11-13 16:23:43,297 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 23 [2024-11-13 16:23:43,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:23:43,298 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2024-11-13 16:23:43,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-13 16:23:43,298 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2024-11-13 16:23:43,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 16:23:43,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:23:43,298 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:23:43,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 16:23:43,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:23:43,499 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:23:43,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:23:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1583749332, now seen corresponding path program 1 times [2024-11-13 16:23:43,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:23:43,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591661438] [2024-11-13 16:23:43,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:23:43,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:23:43,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:23:43,502 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:23:43,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 16:23:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:23:43,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 16:23:43,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:23:44,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:23:44,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:23:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:23:51,149 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:23:51,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591661438] [2024-11-13 16:23:51,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591661438] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:23:51,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:23:51,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-13 16:23:51,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803392810] [2024-11-13 16:23:51,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:23:51,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:23:51,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:23:51,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:23:51,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:23:51,151 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-13 16:24:04,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:06,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:09,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:10,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:11,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:14,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:15,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:18,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:18,188 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2024-11-13 16:24:18,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:24:18,194 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), 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 25 [2024-11-13 16:24:18,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:18,195 INFO L225 Difference]: With dead ends: 78 [2024-11-13 16:24:18,195 INFO L226 Difference]: Without dead ends: 77 [2024-11-13 16:24:18,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:24:18,196 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 32 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:18,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 61 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 27.0s Time] [2024-11-13 16:24:18,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-13 16:24:18,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2024-11-13 16:24:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 50 states have (on average 1.38) internal successors, (69), 67 states have internal predecessors, (69), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:24:18,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2024-11-13 16:24:18,204 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 25 [2024-11-13 16:24:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:18,204 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2024-11-13 16:24:18,204 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), 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) [2024-11-13 16:24:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2024-11-13 16:24:18,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 16:24:18,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:18,207 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:24:18,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 16:24:18,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:18,408 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:24:18,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:18,408 INFO L85 PathProgramCache]: Analyzing trace with hash -767901599, now seen corresponding path program 1 times [2024-11-13 16:24:18,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:24:18,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1192585278] [2024-11-13 16:24:18,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:18,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:18,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:24:18,410 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:24:18,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 16:24:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:18,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:24:18,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:24:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:24:18,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:24:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:24:19,576 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:24:19,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192585278] [2024-11-13 16:24:19,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192585278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:24:19,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:24:19,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-13 16:24:19,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743115777] [2024-11-13 16:24:19,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:24:19,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:24:19,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:24:19,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:24:19,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:24:19,578 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:24:23,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:23,356 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2024-11-13 16:24:23,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:24:23,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 32 [2024-11-13 16:24:23,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:23,364 INFO L225 Difference]: With dead ends: 73 [2024-11-13 16:24:23,364 INFO L226 Difference]: Without dead ends: 72 [2024-11-13 16:24:23,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:24:23,365 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 30 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:23,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 92 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 16:24:23,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-13 16:24:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-13 16:24:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 50 states have (on average 1.36) internal successors, (68), 66 states have internal predecessors, (68), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:24:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2024-11-13 16:24:23,372 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 32 [2024-11-13 16:24:23,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:23,372 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2024-11-13 16:24:23,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:24:23,372 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2024-11-13 16:24:23,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 16:24:23,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:23,373 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:24:23,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 16:24:23,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:23,573 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:24:23,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:23,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1964855614, now seen corresponding path program 1 times [2024-11-13 16:24:23,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:24:23,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889283496] [2024-11-13 16:24:23,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:23,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:23,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:24:23,576 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:24:23,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 16:24:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:23,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:24:23,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:24:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:24:23,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:24:23,993 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:24:23,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889283496] [2024-11-13 16:24:23,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889283496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:23,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:23,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:24:23,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355263540] [2024-11-13 16:24:23,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:23,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:24:23,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:24:23,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:24:23,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:24:23,995 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-13 16:24:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:24,074 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2024-11-13 16:24:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:24:24,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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 33 [2024-11-13 16:24:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:24,075 INFO L225 Difference]: With dead ends: 77 [2024-11-13 16:24:24,075 INFO L226 Difference]: Without dead ends: 76 [2024-11-13 16:24:24,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:24:24,076 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:24,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:24:24,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-13 16:24:24,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-13 16:24:24,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 69 states have internal predecessors, (72), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:24:24,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2024-11-13 16:24:24,085 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 33 [2024-11-13 16:24:24,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:24,085 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2024-11-13 16:24:24,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-13 16:24:24,085 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2024-11-13 16:24:24,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 16:24:24,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:24,086 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:24:24,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 16:24:24,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:24,287 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:24:24,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:24,287 INFO L85 PathProgramCache]: Analyzing trace with hash 780941251, now seen corresponding path program 1 times [2024-11-13 16:24:24,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:24:24,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [351747961] [2024-11-13 16:24:24,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:24,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:24,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:24:24,289 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:24:24,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 16:24:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:24,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:24:24,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:24:24,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:24:24,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:24:24,838 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:24:24,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351747961] [2024-11-13 16:24:24,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351747961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:24,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:24,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:24:24,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941771694] [2024-11-13 16:24:24,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:24,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:24:24,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:24:24,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:24:24,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:24:24,841 INFO L87 Difference]: Start difference. First operand 76 states and 80 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-13 16:24:28,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:31,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:31,413 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2024-11-13 16:24:31,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:24:31,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 34 [2024-11-13 16:24:31,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:31,421 INFO L225 Difference]: With dead ends: 87 [2024-11-13 16:24:31,421 INFO L226 Difference]: Without dead ends: 84 [2024-11-13 16:24:31,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:24:31,422 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:31,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 78 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-13 16:24:31,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-13 16:24:31,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-13 16:24:31,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 77 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:24:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2024-11-13 16:24:31,428 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 34 [2024-11-13 16:24:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:31,429 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2024-11-13 16:24:31,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-13 16:24:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2024-11-13 16:24:31,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 16:24:31,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:31,430 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:24:31,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 16:24:31,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:31,631 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:24:31,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:31,631 INFO L85 PathProgramCache]: Analyzing trace with hash -816937504, now seen corresponding path program 1 times [2024-11-13 16:24:31,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:24:31,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387722677] [2024-11-13 16:24:31,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:31,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:31,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:24:31,633 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:24:31,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 16:24:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:31,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:24:31,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:24:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:24:32,995 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:24:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:24:36,229 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:24:36,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387722677] [2024-11-13 16:24:36,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387722677] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:24:36,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:24:36,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-13 16:24:36,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875185287] [2024-11-13 16:24:36,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:36,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:24:36,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:24:36,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:24:36,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:24:36,231 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-13 16:24:41,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:46,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:24:52,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:24:52,009 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2024-11-13 16:24:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:24:52,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 37 [2024-11-13 16:24:52,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:24:52,022 INFO L225 Difference]: With dead ends: 87 [2024-11-13 16:24:52,022 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 16:24:52,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:24:52,022 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 30 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:24:52,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 95 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2024-11-13 16:24:52,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 16:24:52,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-13 16:24:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 79 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:24:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2024-11-13 16:24:52,029 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 37 [2024-11-13 16:24:52,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:24:52,030 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2024-11-13 16:24:52,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-13 16:24:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2024-11-13 16:24:52,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-13 16:24:52,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:24:52,032 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:24:52,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 16:24:52,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:52,232 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:24:52,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:52,233 INFO L85 PathProgramCache]: Analyzing trace with hash 444741255, now seen corresponding path program 1 times [2024-11-13 16:24:52,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:24:52,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515369288] [2024-11-13 16:24:52,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:52,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:24:52,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:24:52,234 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:24:52,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 16:24:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:52,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 16:24:52,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:24:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:24:53,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:24:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:24:58,179 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:24:58,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515369288] [2024-11-13 16:24:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515369288] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:24:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:24:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-13 16:24:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348024403] [2024-11-13 16:24:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:58,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:24:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:24:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:24:58,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:24:58,181 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-13 16:25:01,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:25:06,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:25:11,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:25:14,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:25:21,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:25:25,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:25,031 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2024-11-13 16:25:25,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:25:25,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 38 [2024-11-13 16:25:25,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:25,039 INFO L225 Difference]: With dead ends: 88 [2024-11-13 16:25:25,039 INFO L226 Difference]: Without dead ends: 87 [2024-11-13 16:25:25,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:25:25,040 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 29 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:25,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 92 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 1 Unknown, 0 Unchecked, 25.8s Time] [2024-11-13 16:25:25,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-13 16:25:25,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-13 16:25:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.296875) internal successors, (83), 80 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 16:25:25,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2024-11-13 16:25:25,046 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 38 [2024-11-13 16:25:25,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:25,047 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2024-11-13 16:25:25,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-13 16:25:25,047 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2024-11-13 16:25:25,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-13 16:25:25,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:25,048 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:25:25,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 16:25:25,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:25,248 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:25:25,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:25,249 INFO L85 PathProgramCache]: Analyzing trace with hash -609391790, now seen corresponding path program 1 times [2024-11-13 16:25:25,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:25:25,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651873754] [2024-11-13 16:25:25,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:25,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:25,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:25:25,251 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:25:25,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 16:25:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:25,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:25:25,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:25:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:25:26,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:25:54,371 WARN L873 $PredicateComparison]: unable to prove that (bvsle (_ bv170141183460469231722463931679029329920 127) (let ((.cse0 ((_ sign_extend 63) ((_ sign_extend 32) |c_ULTIMATE.start_main_~z~0#1|)))) (bvmul .cse0 .cse0))) is different from true [2024-11-13 16:26:11,017 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_32| (_ BitVec 32))) (bvsle (_ bv170141183460469231722463931679029329920 127) (let ((.cse0 ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_32|)))) (bvmul .cse0 .cse0))))) is different from true [2024-11-13 16:26:31,483 WARN L873 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_32| (_ BitVec 32))) (bvsle (_ bv170141183460469231722463931679029329920 127) (let ((.cse0 ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_32|)))) (bvmul .cse0 .cse0))))) is different from true [2024-11-13 16:26:31,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 3 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:26:31,485 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:26:31,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651873754] [2024-11-13 16:26:31,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651873754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:26:31,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:26:31,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-13 16:26:31,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535753437] [2024-11-13 16:26:31,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:26:31,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:26:31,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:26:31,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:26:31,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=32, Unknown=3, NotChecked=36, Total=90 [2024-11-13 16:26:31,486 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 16:26:39,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:26:47,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:26:51,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:26:56,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:02,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:06,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:10,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:11,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:13,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:16,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:20,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:22,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:24,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:27,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:29,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:32,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:33,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:36,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:40,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:42,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:43,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:45,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:47,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:27:47,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:27:47,717 INFO L93 Difference]: Finished difference Result 118 states and 136 transitions. [2024-11-13 16:27:47,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:27:47,736 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 38 [2024-11-13 16:27:47,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:27:47,737 INFO L225 Difference]: With dead ends: 118 [2024-11-13 16:27:47,738 INFO L226 Difference]: Without dead ends: 116 [2024-11-13 16:27:47,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 66 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=24, Invalid=41, Unknown=3, NotChecked=42, Total=110 [2024-11-13 16:27:47,739 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 69 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 385 IncrementalHoareTripleChecker+Unchecked, 73.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:27:47,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 138 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 195 Invalid, 4 Unknown, 385 Unchecked, 73.7s Time] [2024-11-13 16:27:47,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-13 16:27:47,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2024-11-13 16:27:47,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 102 states have internal predecessors, (117), 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) [2024-11-13 16:27:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2024-11-13 16:27:47,749 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 38 [2024-11-13 16:27:47,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:27:47,750 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2024-11-13 16:27:47,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 16:27:47,751 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2024-11-13 16:27:47,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 16:27:47,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:27:47,753 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:27:47,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 16:27:47,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:27:47,953 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:27:47,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:27:47,954 INFO L85 PathProgramCache]: Analyzing trace with hash 902077122, now seen corresponding path program 1 times [2024-11-13 16:27:47,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:27:47,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29774785] [2024-11-13 16:27:47,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:27:47,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:27:47,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:27:47,958 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:27:47,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 16:27:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:27:48,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:27:48,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:27:49,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:27:49,486 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:27:49,844 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:27:49,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29774785] [2024-11-13 16:27:49,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29774785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:27:49,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2016797176] [2024-11-13 16:27:49,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:27:49,845 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:27:49,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 16:27:49,853 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:27:49,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-13 16:27:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:27:50,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:27:50,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:27:52,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:27:52,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:27:57,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:27:57,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2016797176] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 16:27:57,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:27:57,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 6] total 9 [2024-11-13 16:27:57,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265496132] [2024-11-13 16:27:57,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:27:57,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:27:57,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:27:57,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:27:57,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:27:57,772 INFO L87 Difference]: Start difference. First operand 110 states and 127 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, (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) [2024-11-13 16:28:00,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:28:05,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:28:08,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:28:10,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:28:19,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:28:21,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:28:21,900 INFO L93 Difference]: Finished difference Result 112 states and 128 transitions. [2024-11-13 16:28:21,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:28:21,922 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, (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 39 [2024-11-13 16:28:21,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:28:21,923 INFO L225 Difference]: With dead ends: 112 [2024-11-13 16:28:21,923 INFO L226 Difference]: Without dead ends: 103 [2024-11-13 16:28:21,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:28:21,924 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 28 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:28:21,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 93 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 23.0s Time] [2024-11-13 16:28:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-13 16:28:21,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-11-13 16:28:21,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 79 states have (on average 1.379746835443038) internal successors, (109), 95 states have internal predecessors, (109), 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) [2024-11-13 16:28:21,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 119 transitions. [2024-11-13 16:28:21,934 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 119 transitions. Word has length 39 [2024-11-13 16:28:21,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:28:21,934 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 119 transitions. [2024-11-13 16:28:21,934 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, (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) [2024-11-13 16:28:21,934 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 119 transitions. [2024-11-13 16:28:21,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-13 16:28:21,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:28:21,935 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:28:21,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 16:28:22,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-13 16:28:22,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 16:28:22,336 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:28:22,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:28:22,336 INFO L85 PathProgramCache]: Analyzing trace with hash 631972293, now seen corresponding path program 1 times [2024-11-13 16:28:22,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:28:22,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825110954] [2024-11-13 16:28:22,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:28:22,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:28:22,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:28:22,339 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:28:22,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 16:28:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:28:22,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:28:22,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:28:23,376 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:28:23,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:28:24,160 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:28:24,160 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:28:24,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825110954] [2024-11-13 16:28:24,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825110954] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:28:24,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:28:24,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2024-11-13 16:28:24,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367238977] [2024-11-13 16:28:24,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:28:24,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:28:24,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:28:24,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:28:24,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:28:24,162 INFO L87 Difference]: Start difference. First operand 103 states and 119 transitions. Second operand has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-13 16:28:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:28:26,136 INFO L93 Difference]: Finished difference Result 202 states and 207 transitions. [2024-11-13 16:28:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:28:26,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 42 [2024-11-13 16:28:26,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:28:26,137 INFO L225 Difference]: With dead ends: 202 [2024-11-13 16:28:26,137 INFO L226 Difference]: Without dead ends: 188 [2024-11-13 16:28:26,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2024-11-13 16:28:26,139 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 116 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:28:26,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 410 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 16:28:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-13 16:28:26,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 141. [2024-11-13 16:28:26,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 113 states have (on average 1.3716814159292035) internal successors, (155), 129 states have internal predecessors, (155), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:28:26,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 167 transitions. [2024-11-13 16:28:26,150 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 167 transitions. Word has length 42 [2024-11-13 16:28:26,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:28:26,150 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 167 transitions. [2024-11-13 16:28:26,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-13 16:28:26,150 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 167 transitions. [2024-11-13 16:28:26,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 16:28:26,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:28:26,151 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:28:26,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 16:28:26,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:28:26,352 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:28:26,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:28:26,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1734986375, now seen corresponding path program 1 times [2024-11-13 16:28:26,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:28:26,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15627573] [2024-11-13 16:28:26,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:28:26,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:28:26,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:28:26,355 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:28:26,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 16:28:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:28:26,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:28:26,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:28:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:28:28,116 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:29:29,424 WARN L873 $PredicateComparison]: unable to prove that (bvsle (_ bv170141183460469231722463931679029329920 127) (let ((.cse0 ((_ sign_extend 32) |c_ULTIMATE.start_main_~z~0#1|))) (bvmul ((_ sign_extend 63) .cse0) ((_ sign_extend 63) (bvadd (_ bv1 64) .cse0))))) is different from true [2024-11-13 16:29:46,456 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_42| (_ BitVec 32))) (bvsle (_ bv170141183460469231722463931679029329920 127) (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_42|))) (bvmul ((_ sign_extend 63) (bvadd (_ bv1 64) .cse0)) ((_ sign_extend 63) .cse0)))))) is different from true [2024-11-13 16:30:07,158 WARN L873 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_42| (_ BitVec 32))) (bvsle (_ bv170141183460469231722463931679029329920 127) (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_42|))) (bvmul ((_ sign_extend 63) (bvadd (_ bv1 64) .cse0)) ((_ sign_extend 63) .cse0)))))) is different from true [2024-11-13 16:30:07,160 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 3 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:30:07,160 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:30:07,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15627573] [2024-11-13 16:30:07,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15627573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:30:07,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:30:07,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-13 16:30:07,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209353254] [2024-11-13 16:30:07,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:30:07,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:30:07,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:30:07,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:30:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=54, Unknown=3, NotChecked=48, Total=132 [2024-11-13 16:30:07,162 INFO L87 Difference]: Start difference. First operand 141 states and 167 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 16:30:11,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:15,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:23,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:38,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:43,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:45,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:48,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:52,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:54,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:55,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:57,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:58,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:01,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:04,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:05,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:09,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:13,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:17,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:21,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:25,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:29,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:33,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:37,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:41,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:45,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:50,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:53,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:31:57,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:01,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:05,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:09,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:13,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:17,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:21,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:25,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:26,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:28,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:32,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:34,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:37,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:41,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:45,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:47,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:51,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:52,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:55,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:32:59,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:33:04,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:33:06,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:33:10,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:33:12,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:33:17,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:33:17,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:17,123 INFO L93 Difference]: Finished difference Result 158 states and 179 transitions. [2024-11-13 16:33:17,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:33:17,160 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2024-11-13 16:33:17,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:17,161 INFO L225 Difference]: With dead ends: 158 [2024-11-13 16:33:17,161 INFO L226 Difference]: Without dead ends: 150 [2024-11-13 16:33:17,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 42.0s TimeCoverageRelationStatistics Valid=33, Invalid=66, Unknown=3, NotChecked=54, Total=156 [2024-11-13 16:33:17,162 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 122 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 12 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 174.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 382 IncrementalHoareTripleChecker+Unchecked, 177.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:17,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 185 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 267 Invalid, 27 Unknown, 382 Unchecked, 177.7s Time] [2024-11-13 16:33:17,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-13 16:33:17,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 145. [2024-11-13 16:33:17,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 133 states have internal predecessors, (152), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:33:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 164 transitions. [2024-11-13 16:33:17,173 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 164 transitions. Word has length 44 [2024-11-13 16:33:17,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:17,174 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 164 transitions. [2024-11-13 16:33:17,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 16:33:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 164 transitions. [2024-11-13 16:33:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 16:33:17,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:17,175 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-11-13 16:33:17,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 16:33:17,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:17,376 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-13 16:33:17,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1853414801, now seen corresponding path program 1 times [2024-11-13 16:33:17,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:33:17,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113720759] [2024-11-13 16:33:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:17,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:17,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:17,379 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:33:17,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 16:33:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:18,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:33:18,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:21,828 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:33:21,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:33:33,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:33:33,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113720759] [2024-11-13 16:33:33,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113720759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:33:33,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1412979363] [2024-11-13 16:33:33,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:33,933 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:33:33,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 16:33:33,936 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:33:33,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8497d7db-5829-4299-9b48-96e4d0707b54/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-13 16:33:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:35,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 16:33:35,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:37,930 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:33:37,930 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:33:45,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1412979363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:33:45,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:33:45,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2024-11-13 16:33:45,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982776887] [2024-11-13 16:33:45,811 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:33:45,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:33:45,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:33:45,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:33:45,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:33:45,812 INFO L87 Difference]: Start difference. First operand 145 states and 164 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:33:51,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:34:06,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:34:10,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:34:14,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:34:18,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 16:34:22,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []