./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.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_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/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_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/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_50e61fa5-e80f-4ca5-8f7a-80c334158894/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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:03:38,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:03:38,397 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 14:03:38,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:03:38,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:03:38,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:03:38,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:03:38,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:03:38,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:03:38,427 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:03:38,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:03:38,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:03:38,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:03:38,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:03:38,428 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:03:38,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:03:38,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:03:38,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:03:38,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:03:38,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:03:38,430 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:03:38,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:03:38,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:03:38,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:03:38,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:03:38,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:03:38,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:03:38,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:03:38,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:03:38,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:03:38,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:03:38,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:03:38,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:03:38,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:03:38,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:03:38,431 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_50e61fa5-e80f-4ca5-8f7a-80c334158894/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 -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-11-13 14:03:38,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:03:38,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:03:38,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:03:38,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:03:38,763 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:03:38,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c Unable to find full path for "g++" [2024-11-13 14:03:40,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:03:40,877 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:03:40,878 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-11-13 14:03:40,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/data/f8731f5f2/bbe7bdf568af4a078f732440e407b88a/FLAGe1ea7ad6e [2024-11-13 14:03:40,932 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/data/f8731f5f2/bbe7bdf568af4a078f732440e407b88a [2024-11-13 14:03:40,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:03:40,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:03:40,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:03:40,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:03:40,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:03:40,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:03:40" (1/1) ... [2024-11-13 14:03:40,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce226a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:40, skipping insertion in model container [2024-11-13 14:03:40,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:03:40" (1/1) ... [2024-11-13 14:03:40,966 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:03:41,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:03:41,150 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:03:41,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:03:41,194 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:03:41,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41 WrapperNode [2024-11-13 14:03:41,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:03:41,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:03:41,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:03:41,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:03:41,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,232 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-13 14:03:41,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:03:41,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:03:41,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:03:41,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:03:41,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,245 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,265 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 14:03:41,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:03:41,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:03:41,283 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:03:41,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:03:41,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (1/1) ... [2024-11-13 14:03:41,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:03:41,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:41,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:03:41,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:03:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:03:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:03:41,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:03:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:03:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:03:41,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:03:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 14:03:41,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 14:03:41,423 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:03:41,425 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:03:41,725 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-13 14:03:41,725 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:03:41,738 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:03:41,738 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:03:41,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:03:41 BoogieIcfgContainer [2024-11-13 14:03:41,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:03:41,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:03:41,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:03:41,747 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:03:41,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:03:40" (1/3) ... [2024-11-13 14:03:41,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234a0c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:03:41, skipping insertion in model container [2024-11-13 14:03:41,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:03:41" (2/3) ... [2024-11-13 14:03:41,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234a0c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:03:41, skipping insertion in model container [2024-11-13 14:03:41,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:03:41" (3/3) ... [2024-11-13 14:03:41,751 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound1.c [2024-11-13 14:03:41,771 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:03:41,775 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_valuebound1.c that has 3 procedures, 64 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2024-11-13 14:03:41,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:03:41,860 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;@6159b770, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:03:41,861 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-13 14:03:41,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 57 states have internal predecessors, (63), 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 14:03:41,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 14:03:41,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:41,874 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:41,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:41,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:41,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1395923600, now seen corresponding path program 1 times [2024-11-13 14:03:41,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:41,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327305806] [2024-11-13 14:03:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:41,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:42,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:42,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:42,067 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 14:03:42,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:42,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327305806] [2024-11-13 14:03:42,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327305806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:42,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:03:42,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:03:42,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192353604] [2024-11-13 14:03:42,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:42,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:03:42,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:42,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:03:42,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:03:42,105 INFO L87 Difference]: Start difference. First operand has 64 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 57 states have internal predecessors, (63), 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 14:03:42,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:42,125 INFO L93 Difference]: Finished difference Result 124 states and 141 transitions. [2024-11-13 14:03:42,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:03:42,127 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 14:03:42,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:42,133 INFO L225 Difference]: With dead ends: 124 [2024-11-13 14:03:42,133 INFO L226 Difference]: Without dead ends: 57 [2024-11-13 14:03:42,137 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 14:03:42,140 INFO L432 NwaCegarLoop]: 66 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, 66 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 14:03:42,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:03:42,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-13 14:03:42,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-13 14:03:42,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 32 states have (on average 1.65625) internal successors, (53), 51 states have internal predecessors, (53), 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 14:03:42,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2024-11-13 14:03:42,185 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 15 [2024-11-13 14:03:42,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:42,186 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2024-11-13 14:03:42,186 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 14:03:42,186 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2024-11-13 14:03:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 14:03:42,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:42,187 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:42,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:03:42,188 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:42,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:42,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2140720801, now seen corresponding path program 1 times [2024-11-13 14:03:42,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:42,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740052823] [2024-11-13 14:03:42,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:42,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:03:42,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062002656] [2024-11-13 14:03:42,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:42,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:42,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:42,229 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:42,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:03:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:42,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:03:42,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:42,351 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 14:03:42,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:03:42,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:42,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740052823] [2024-11-13 14:03:42,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:03:42,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062002656] [2024-11-13 14:03:42,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062002656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:42,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:03:42,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:03:42,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333643842] [2024-11-13 14:03:42,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:42,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:03:42,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:42,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:03:42,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:03:42,357 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:03:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:42,534 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-11-13 14:03:42,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:03:42,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-13 14:03:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:42,536 INFO L225 Difference]: With dead ends: 91 [2024-11-13 14:03:42,536 INFO L226 Difference]: Without dead ends: 85 [2024-11-13 14:03:42,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:03:42,538 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 26 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:42,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 76 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:03:42,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-13 14:03:42,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 77. [2024-11-13 14:03:42,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 70 states have internal predecessors, (84), 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 14:03:42,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2024-11-13 14:03:42,547 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 15 [2024-11-13 14:03:42,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:42,548 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2024-11-13 14:03:42,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:03:42,549 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2024-11-13 14:03:42,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 14:03:42,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:42,549 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:42,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:03:42,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:42,750 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:42,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash 56646529, now seen corresponding path program 1 times [2024-11-13 14:03:42,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:42,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757739084] [2024-11-13 14:03:42,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:42,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:42,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:42,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:42,963 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 14:03:42,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:42,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757739084] [2024-11-13 14:03:42,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757739084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:42,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:03:42,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:03:42,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505662380] [2024-11-13 14:03:42,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:42,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:03:42,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:42,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:03:42,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:03:42,969 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:03:43,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:43,257 INFO L93 Difference]: Finished difference Result 121 states and 153 transitions. [2024-11-13 14:03:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:03:43,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-13 14:03:43,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:43,260 INFO L225 Difference]: With dead ends: 121 [2024-11-13 14:03:43,260 INFO L226 Difference]: Without dead ends: 114 [2024-11-13 14:03:43,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 14:03:43,262 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:43,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 94 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:03:43,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-13 14:03:43,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2024-11-13 14:03:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 82 states have (on average 1.5609756097560976) internal successors, (128), 101 states have internal predecessors, (128), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:03:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2024-11-13 14:03:43,276 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 17 [2024-11-13 14:03:43,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:43,277 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2024-11-13 14:03:43,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 14:03:43,277 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2024-11-13 14:03:43,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 14:03:43,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:43,278 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:43,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:03:43,278 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:43,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:43,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1756042450, now seen corresponding path program 1 times [2024-11-13 14:03:43,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:43,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959006406] [2024-11-13 14:03:43,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:43,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:43,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:43,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:43,573 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 14:03:43,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959006406] [2024-11-13 14:03:43,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959006406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:43,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:03:43,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:03:43,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87068169] [2024-11-13 14:03:43,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:43,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:03:43,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:43,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:03:43,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:03:43,577 INFO L87 Difference]: Start difference. First operand 110 states and 140 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 14:03:43,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:43,720 INFO L93 Difference]: Finished difference Result 116 states and 141 transitions. [2024-11-13 14:03:43,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:03:43,720 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 14:03:43,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:43,722 INFO L225 Difference]: With dead ends: 116 [2024-11-13 14:03:43,722 INFO L226 Difference]: Without dead ends: 107 [2024-11-13 14:03:43,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:03:43,723 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 32 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:43,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 78 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:03:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-13 14:03:43,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-13 14:03:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 96 states have internal predecessors, (118), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:03:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2024-11-13 14:03:43,734 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 18 [2024-11-13 14:03:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:43,735 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2024-11-13 14:03:43,735 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 14:03:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2024-11-13 14:03:43,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 14:03:43,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:43,736 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:43,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:03:43,736 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:43,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:43,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1397258845, now seen corresponding path program 1 times [2024-11-13 14:03:43,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:43,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956730918] [2024-11-13 14:03:43,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:43,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:43,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:43,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:43,917 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 14:03:43,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:43,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956730918] [2024-11-13 14:03:43,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956730918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:43,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098344880] [2024-11-13 14:03:43,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:43,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:43,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:43,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:43,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:03:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:43,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:03:43,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:44,129 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 14:03:44,130 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:03:44,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098344880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:44,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:03:44,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-13 14:03:44,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132542345] [2024-11-13 14:03:44,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:44,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:03:44,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:44,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:03:44,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:03:44,132 INFO L87 Difference]: Start difference. First operand 105 states and 130 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 14:03:44,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:44,293 INFO L93 Difference]: Finished difference Result 108 states and 134 transitions. [2024-11-13 14:03:44,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:03:44,293 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 14:03:44,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:44,294 INFO L225 Difference]: With dead ends: 108 [2024-11-13 14:03:44,294 INFO L226 Difference]: Without dead ends: 107 [2024-11-13 14:03:44,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:03:44,296 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 72 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:44,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 64 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:03:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-13 14:03:44,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-13 14:03:44,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 96 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:03:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 129 transitions. [2024-11-13 14:03:44,322 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 129 transitions. Word has length 19 [2024-11-13 14:03:44,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:44,322 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 129 transitions. [2024-11-13 14:03:44,322 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 14:03:44,322 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 129 transitions. [2024-11-13 14:03:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 14:03:44,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:44,326 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 14:03:44,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:03:44,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:44,527 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:44,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:44,527 INFO L85 PathProgramCache]: Analyzing trace with hash -365351180, now seen corresponding path program 1 times [2024-11-13 14:03:44,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:44,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485585533] [2024-11-13 14:03:44,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:44,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:03:44,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233929258] [2024-11-13 14:03:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:44,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:44,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:44,549 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:44,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:03:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:44,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:03:44,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:44,717 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 14:03:44,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:03:44,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:44,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485585533] [2024-11-13 14:03:44,717 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:03:44,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233929258] [2024-11-13 14:03:44,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233929258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:44,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:03:44,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:03:44,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218547582] [2024-11-13 14:03:44,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:44,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:03:44,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:44,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:03:44,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:03:44,719 INFO L87 Difference]: Start difference. First operand 105 states and 129 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 14:03:44,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:44,840 INFO L93 Difference]: Finished difference Result 106 states and 129 transitions. [2024-11-13 14:03:44,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:03:44,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 14:03:44,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:44,842 INFO L225 Difference]: With dead ends: 106 [2024-11-13 14:03:44,842 INFO L226 Difference]: Without dead ends: 105 [2024-11-13 14:03:44,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 14:03:44,843 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 65 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:44,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 69 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:03:44,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-13 14:03:44,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-13 14:03:44,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 96 states have internal predecessors, (116), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:03:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 128 transitions. [2024-11-13 14:03:44,855 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 128 transitions. Word has length 20 [2024-11-13 14:03:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:44,856 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 128 transitions. [2024-11-13 14:03:44,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 14:03:44,856 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 128 transitions. [2024-11-13 14:03:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 14:03:44,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:44,857 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] [2024-11-13 14:03:44,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:03:45,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 14:03:45,061 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:45,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1338818376, now seen corresponding path program 1 times [2024-11-13 14:03:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:45,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951282756] [2024-11-13 14:03:45,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:45,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:45,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:45,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:45,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:45,282 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 14:03:45,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951282756] [2024-11-13 14:03:45,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951282756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091567359] [2024-11-13 14:03:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:45,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:45,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:45,287 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:45,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:03:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:45,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:03:45,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:45,399 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 14:03:45,400 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:03:45,529 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 14:03:45,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091567359] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:03:45,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:03:45,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-13 14:03:45,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829045475] [2024-11-13 14:03:45,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:03:45,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:03:45,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:45,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:03:45,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:03:45,533 INFO L87 Difference]: Start difference. First operand 105 states and 128 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:03:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:45,665 INFO L93 Difference]: Finished difference Result 158 states and 195 transitions. [2024-11-13 14:03:45,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:03:45,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 32 [2024-11-13 14:03:45,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:45,667 INFO L225 Difference]: With dead ends: 158 [2024-11-13 14:03:45,667 INFO L226 Difference]: Without dead ends: 156 [2024-11-13 14:03:45,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:03:45,669 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 216 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:45,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 210 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:03:45,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-13 14:03:45,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2024-11-13 14:03:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.5) internal successors, (174), 135 states have internal predecessors, (174), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:03:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 190 transitions. [2024-11-13 14:03:45,682 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 190 transitions. Word has length 32 [2024-11-13 14:03:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:45,683 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 190 transitions. [2024-11-13 14:03:45,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:03:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 190 transitions. [2024-11-13 14:03:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 14:03:45,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:45,684 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 14:03:45,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:03:45,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:45,885 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:45,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:45,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1446303218, now seen corresponding path program 1 times [2024-11-13 14:03:45,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:45,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36328774] [2024-11-13 14:03:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:45,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:45,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:45,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:45,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:45,947 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 14:03:45,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:45,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36328774] [2024-11-13 14:03:45,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36328774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:45,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:03:45,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:03:45,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401229149] [2024-11-13 14:03:45,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:45,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:03:45,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:45,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:03:45,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:03:45,949 INFO L87 Difference]: Start difference. First operand 146 states and 190 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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 14:03:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:45,989 INFO L93 Difference]: Finished difference Result 146 states and 190 transitions. [2024-11-13 14:03:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:03:45,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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 14:03:45,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:45,991 INFO L225 Difference]: With dead ends: 146 [2024-11-13 14:03:45,991 INFO L226 Difference]: Without dead ends: 144 [2024-11-13 14:03:45,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 14:03:45,992 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 57 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:45,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 73 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:03:45,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-13 14:03:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-13 14:03:46,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 116 states have (on average 1.456896551724138) internal successors, (169), 133 states have internal predecessors, (169), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:03:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 185 transitions. [2024-11-13 14:03:46,007 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 185 transitions. Word has length 33 [2024-11-13 14:03:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:46,008 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 185 transitions. [2024-11-13 14:03:46,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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 14:03:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 185 transitions. [2024-11-13 14:03:46,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 14:03:46,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:46,009 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 14:03:46,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:03:46,013 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:46,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:46,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1091076326, now seen corresponding path program 1 times [2024-11-13 14:03:46,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:46,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718579025] [2024-11-13 14:03:46,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:46,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:03:46,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240748069] [2024-11-13 14:03:46,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:46,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:46,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:46,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:46,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:03:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:46,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:03:46,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:46,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:03:46,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:03:46,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:46,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718579025] [2024-11-13 14:03:46,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:03:46,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240748069] [2024-11-13 14:03:46,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240748069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:46,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:03:46,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-13 14:03:46,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213309433] [2024-11-13 14:03:46,567 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:03:46,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:03:46,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:46,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:03:46,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:03:46,569 INFO L87 Difference]: Start difference. First operand 144 states and 185 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 14:03:46,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:46,722 INFO L93 Difference]: Finished difference Result 151 states and 188 transitions. [2024-11-13 14:03:46,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:03:46,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 35 [2024-11-13 14:03:46,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:46,724 INFO L225 Difference]: With dead ends: 151 [2024-11-13 14:03:46,724 INFO L226 Difference]: Without dead ends: 144 [2024-11-13 14:03:46,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:03:46,725 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 72 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:46,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 49 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:03:46,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-13 14:03:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2024-11-13 14:03:46,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 117 states have (on average 1.3418803418803418) internal successors, (157), 129 states have internal predecessors, (157), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:03:46,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 173 transitions. [2024-11-13 14:03:46,749 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 173 transitions. Word has length 35 [2024-11-13 14:03:46,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:46,749 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 173 transitions. [2024-11-13 14:03:46,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 14:03:46,750 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 173 transitions. [2024-11-13 14:03:46,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-13 14:03:46,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:46,755 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] [2024-11-13 14:03:46,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 14:03:46,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:46,955 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:46,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:46,956 INFO L85 PathProgramCache]: Analyzing trace with hash -536372215, now seen corresponding path program 1 times [2024-11-13 14:03:46,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:46,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236328054] [2024-11-13 14:03:46,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:46,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:03:46,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607161027] [2024-11-13 14:03:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:46,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:46,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:46,972 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:46,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:03:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:47,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:03:47,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:47,215 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 14:03:47,215 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:03:47,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:47,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236328054] [2024-11-13 14:03:47,717 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:03:47,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607161027] [2024-11-13 14:03:47,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607161027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:47,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:03:47,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-13 14:03:47,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818989748] [2024-11-13 14:03:47,717 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:03:47,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:03:47,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:47,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:03:47,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:03:47,719 INFO L87 Difference]: Start difference. First operand 140 states and 173 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 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 14:03:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:47,948 INFO L93 Difference]: Finished difference Result 188 states and 231 transitions. [2024-11-13 14:03:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:03:47,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 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 14:03:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:47,950 INFO L225 Difference]: With dead ends: 188 [2024-11-13 14:03:47,950 INFO L226 Difference]: Without dead ends: 185 [2024-11-13 14:03:47,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:03:47,951 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 97 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:47,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 89 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:03:47,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-13 14:03:47,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 177. [2024-11-13 14:03:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 152 states have (on average 1.3289473684210527) internal successors, (202), 164 states have internal predecessors, (202), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 14:03:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 222 transitions. [2024-11-13 14:03:47,969 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 222 transitions. Word has length 36 [2024-11-13 14:03:47,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:47,969 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 222 transitions. [2024-11-13 14:03:47,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 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 14:03:47,969 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 222 transitions. [2024-11-13 14:03:47,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 14:03:47,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:47,970 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] [2024-11-13 14:03:47,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 14:03:48,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 14:03:48,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:48,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:48,176 INFO L85 PathProgramCache]: Analyzing trace with hash 486518226, now seen corresponding path program 1 times [2024-11-13 14:03:48,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:48,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19689904] [2024-11-13 14:03:48,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:48,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:48,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:48,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:48,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:48,283 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 14:03:48,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:48,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19689904] [2024-11-13 14:03:48,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19689904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:48,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996076606] [2024-11-13 14:03:48,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:48,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:48,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:48,288 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:48,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:03:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:48,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:03:48,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:03:48,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:03:48,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996076606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:48,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:03:48,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-13 14:03:48,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545860681] [2024-11-13 14:03:48,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:48,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:03:48,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:48,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:03:48,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:03:48,493 INFO L87 Difference]: Start difference. First operand 177 states and 222 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 14:03:48,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:48,698 INFO L93 Difference]: Finished difference Result 177 states and 222 transitions. [2024-11-13 14:03:48,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:03:48,699 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 14:03:48,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:48,700 INFO L225 Difference]: With dead ends: 177 [2024-11-13 14:03:48,700 INFO L226 Difference]: Without dead ends: 175 [2024-11-13 14:03:48,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:03:48,701 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:48,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 65 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:03:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-13 14:03:48,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2024-11-13 14:03:48,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 149 states have (on average 1.3154362416107384) internal successors, (196), 159 states have internal predecessors, (196), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 14:03:48,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 216 transitions. [2024-11-13 14:03:48,714 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 216 transitions. Word has length 37 [2024-11-13 14:03:48,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:48,714 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 216 transitions. [2024-11-13 14:03:48,715 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 14:03:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 216 transitions. [2024-11-13 14:03:48,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-13 14:03:48,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:48,717 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] [2024-11-13 14:03:48,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 14:03:48,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 14:03:48,917 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:48,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:48,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2097804127, now seen corresponding path program 1 times [2024-11-13 14:03:48,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:48,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001255712] [2024-11-13 14:03:48,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:48,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:49,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:49,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:49,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:03:49,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001255712] [2024-11-13 14:03:49,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001255712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248253153] [2024-11-13 14:03:49,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:49,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:49,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:49,057 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:49,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 14:03:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:49,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:03:49,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:03:49,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:03:49,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248253153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:49,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:03:49,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-11-13 14:03:49,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174500150] [2024-11-13 14:03:49,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:03:49,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:03:49,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:49,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:03:49,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:03:49,361 INFO L87 Difference]: Start difference. First operand 172 states and 216 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:03:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:49,666 INFO L93 Difference]: Finished difference Result 180 states and 220 transitions. [2024-11-13 14:03:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:03:49,667 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-11-13 14:03:49,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:49,668 INFO L225 Difference]: With dead ends: 180 [2024-11-13 14:03:49,668 INFO L226 Difference]: Without dead ends: 172 [2024-11-13 14:03:49,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:03:49,669 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 35 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:49,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 128 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:03:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-13 14:03:49,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-13 14:03:49,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 159 states have internal predecessors, (192), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 14:03:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 212 transitions. [2024-11-13 14:03:49,682 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 212 transitions. Word has length 38 [2024-11-13 14:03:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:49,682 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 212 transitions. [2024-11-13 14:03:49,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:03:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 212 transitions. [2024-11-13 14:03:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 14:03:49,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:49,683 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] [2024-11-13 14:03:49,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 14:03:49,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 14:03:49,888 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:49,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:49,888 INFO L85 PathProgramCache]: Analyzing trace with hash -607418444, now seen corresponding path program 1 times [2024-11-13 14:03:49,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:49,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763377410] [2024-11-13 14:03:49,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:49,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:49,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:49,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:49,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:49,975 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:03:49,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:49,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763377410] [2024-11-13 14:03:49,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763377410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:49,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:03:49,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:03:49,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392354689] [2024-11-13 14:03:49,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:49,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:03:49,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:49,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:03:49,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:03:49,977 INFO L87 Difference]: Start difference. First operand 172 states and 212 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 14:03:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:50,168 INFO L93 Difference]: Finished difference Result 173 states and 212 transitions. [2024-11-13 14:03:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:03:50,168 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 14:03:50,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:50,170 INFO L225 Difference]: With dead ends: 173 [2024-11-13 14:03:50,170 INFO L226 Difference]: Without dead ends: 172 [2024-11-13 14:03:50,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 14:03:50,171 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:50,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:03:50,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-13 14:03:50,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-13 14:03:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 149 states have (on average 1.261744966442953) internal successors, (188), 159 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 14:03:50,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 208 transitions. [2024-11-13 14:03:50,187 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 208 transitions. Word has length 39 [2024-11-13 14:03:50,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:50,188 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 208 transitions. [2024-11-13 14:03:50,188 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 14:03:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 208 transitions. [2024-11-13 14:03:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 14:03:50,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:50,190 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] [2024-11-13 14:03:50,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:03:50,191 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:50,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:50,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1786267222, now seen corresponding path program 1 times [2024-11-13 14:03:50,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:50,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744284971] [2024-11-13 14:03:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:50,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:50,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:50,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:03:50,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:50,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744284971] [2024-11-13 14:03:50,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744284971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:50,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050478888] [2024-11-13 14:03:50,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:50,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:50,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:50,526 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:50,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 14:03:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:50,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:03:50,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:50,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:03:50,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:03:51,202 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 14:03:51,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050478888] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:03:51,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:03:51,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-13 14:03:51,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724351562] [2024-11-13 14:03:51,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:03:51,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 14:03:51,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:51,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 14:03:51,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:03:51,204 INFO L87 Difference]: Start difference. First operand 172 states and 208 transitions. Second operand has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 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 14:03:52,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:52,074 INFO L93 Difference]: Finished difference Result 173 states and 208 transitions. [2024-11-13 14:03:52,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:03:52,075 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 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 14:03:52,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:52,077 INFO L225 Difference]: With dead ends: 173 [2024-11-13 14:03:52,078 INFO L226 Difference]: Without dead ends: 170 [2024-11-13 14:03:52,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:03:52,079 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 139 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:52,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 127 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:03:52,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-13 14:03:52,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 143. [2024-11-13 14:03:52,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 131 states have internal predecessors, (153), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 14:03:52,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 171 transitions. [2024-11-13 14:03:52,092 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 171 transitions. Word has length 39 [2024-11-13 14:03:52,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:52,092 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 171 transitions. [2024-11-13 14:03:52,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 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 14:03:52,092 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 171 transitions. [2024-11-13 14:03:52,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 14:03:52,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:52,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:52,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 14:03:52,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 14:03:52,295 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:52,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:52,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1650102525, now seen corresponding path program 1 times [2024-11-13 14:03:52,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:52,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912846426] [2024-11-13 14:03:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:52,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:52,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:52,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:52,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:03:52,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:52,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912846426] [2024-11-13 14:03:52,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912846426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:52,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:03:52,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:03:52,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22914861] [2024-11-13 14:03:52,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:52,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:03:52,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:52,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:03:52,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:03:52,374 INFO L87 Difference]: Start difference. First operand 143 states and 171 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 14:03:52,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:52,640 INFO L93 Difference]: Finished difference Result 144 states and 171 transitions. [2024-11-13 14:03:52,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:03:52,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 40 [2024-11-13 14:03:52,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:52,641 INFO L225 Difference]: With dead ends: 144 [2024-11-13 14:03:52,641 INFO L226 Difference]: Without dead ends: 143 [2024-11-13 14:03:52,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 14:03:52,642 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:52,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:03:52,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-13 14:03:52,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-13 14:03:52,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 124 states have (on average 1.2016129032258065) internal successors, (149), 131 states have internal predecessors, (149), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 14:03:52,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2024-11-13 14:03:52,654 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 40 [2024-11-13 14:03:52,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:52,654 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2024-11-13 14:03:52,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 14:03:52,654 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2024-11-13 14:03:52,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 14:03:52,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:52,655 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:52,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 14:03:52,655 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:52,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:52,656 INFO L85 PathProgramCache]: Analyzing trace with hash 460291021, now seen corresponding path program 1 times [2024-11-13 14:03:52,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:52,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687594255] [2024-11-13 14:03:52,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:52,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:03:52,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1746438685] [2024-11-13 14:03:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:52,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:52,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:52,675 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:52,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 14:03:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:52,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:03:52,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:52,957 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:03:52,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:03:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:03:53,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:53,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687594255] [2024-11-13 14:03:53,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:03:53,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746438685] [2024-11-13 14:03:53,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746438685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:03:53,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:03:53,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 14:03:53,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237740753] [2024-11-13 14:03:53,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:03:53,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:03:53,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:53,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:03:53,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:03:53,089 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 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 14:03:53,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:53,608 INFO L93 Difference]: Finished difference Result 230 states and 268 transitions. [2024-11-13 14:03:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:03:53,608 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 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 40 [2024-11-13 14:03:53,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:53,609 INFO L225 Difference]: With dead ends: 230 [2024-11-13 14:03:53,609 INFO L226 Difference]: Without dead ends: 158 [2024-11-13 14:03:53,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:03:53,610 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 69 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:53,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 104 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:03:53,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-13 14:03:53,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-13 14:03:53,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.1654676258992807) internal successors, (162), 145 states have internal predecessors, (162), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 14:03:53,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 182 transitions. [2024-11-13 14:03:53,627 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 182 transitions. Word has length 40 [2024-11-13 14:03:53,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:53,627 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 182 transitions. [2024-11-13 14:03:53,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 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 14:03:53,628 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 182 transitions. [2024-11-13 14:03:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 14:03:53,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:53,629 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 14:03:53,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 14:03:53,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:53,830 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:53,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:53,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1289546014, now seen corresponding path program 2 times [2024-11-13 14:03:53,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:53,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886078666] [2024-11-13 14:03:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:03:53,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450217096] [2024-11-13 14:03:53,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:03:53,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:53,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:53,847 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:53,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 14:03:53,904 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:03:53,904 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:03:53,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:03:53,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:54,065 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:03:54,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:03:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:03:54,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:54,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886078666] [2024-11-13 14:03:54,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:03:54,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450217096] [2024-11-13 14:03:54,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450217096] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:03:54,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:03:54,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-13 14:03:54,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572345566] [2024-11-13 14:03:54,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:03:54,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:03:54,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:54,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:03:54,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:03:54,390 INFO L87 Difference]: Start difference. First operand 158 states and 182 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:03:55,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:55,310 INFO L93 Difference]: Finished difference Result 325 states and 386 transitions. [2024-11-13 14:03:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:03:55,310 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 56 [2024-11-13 14:03:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:55,312 INFO L225 Difference]: With dead ends: 325 [2024-11-13 14:03:55,313 INFO L226 Difference]: Without dead ends: 322 [2024-11-13 14:03:55,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:03:55,315 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 175 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:55,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 210 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:03:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-13 14:03:55,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 300. [2024-11-13 14:03:55,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 274 states have (on average 1.1715328467153285) internal successors, (321), 279 states have internal predecessors, (321), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-13 14:03:55,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 357 transitions. [2024-11-13 14:03:55,347 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 357 transitions. Word has length 56 [2024-11-13 14:03:55,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:55,348 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 357 transitions. [2024-11-13 14:03:55,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:03:55,348 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 357 transitions. [2024-11-13 14:03:55,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 14:03:55,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:55,349 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-13 14:03:55,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 14:03:55,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 14:03:55,553 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:55,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:55,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1489897200, now seen corresponding path program 2 times [2024-11-13 14:03:55,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:55,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952887623] [2024-11-13 14:03:55,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:55,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:55,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:55,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:55,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:55,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:03:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 14:03:55,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:55,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952887623] [2024-11-13 14:03:55,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952887623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:55,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542412347] [2024-11-13 14:03:55,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:03:55,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:55,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:55,724 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:55,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 14:03:55,775 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:03:55,775 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:03:55,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:03:55,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 14:03:55,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:03:56,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542412347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:56,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:03:56,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2024-11-13 14:03:56,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859800620] [2024-11-13 14:03:56,052 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:03:56,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:03:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:03:56,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:03:56,053 INFO L87 Difference]: Start difference. First operand 300 states and 357 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:03:56,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:56,334 INFO L93 Difference]: Finished difference Result 324 states and 383 transitions. [2024-11-13 14:03:56,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:03:56,335 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 58 [2024-11-13 14:03:56,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:56,336 INFO L225 Difference]: With dead ends: 324 [2024-11-13 14:03:56,337 INFO L226 Difference]: Without dead ends: 316 [2024-11-13 14:03:56,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:03:56,337 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 35 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:56,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 150 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:03:56,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-13 14:03:56,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2024-11-13 14:03:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 289 states have (on average 1.166089965397924) internal successors, (337), 294 states have internal predecessors, (337), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 14:03:56,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 375 transitions. [2024-11-13 14:03:56,370 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 375 transitions. Word has length 58 [2024-11-13 14:03:56,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:56,370 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 375 transitions. [2024-11-13 14:03:56,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:03:56,371 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 375 transitions. [2024-11-13 14:03:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 14:03:56,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:56,372 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:56,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 14:03:56,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 14:03:56,573 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:56,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash 538493887, now seen corresponding path program 3 times [2024-11-13 14:03:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:56,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505846609] [2024-11-13 14:03:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:56,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:56,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:56,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:56,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:56,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:03:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:56,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:03:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 14:03:56,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:56,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505846609] [2024-11-13 14:03:56,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505846609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:56,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872407926] [2024-11-13 14:03:56,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:03:56,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:56,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:56,774 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:56,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 14:03:56,823 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 14:03:56,823 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:03:56,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:03:56,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-13 14:03:56,992 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:03:56,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872407926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:03:56,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:03:56,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-13 14:03:56,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673422368] [2024-11-13 14:03:56,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:03:56,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:03:56,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:56,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:03:56,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:03:56,994 INFO L87 Difference]: Start difference. First operand 316 states and 375 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 14:03:57,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:57,146 INFO L93 Difference]: Finished difference Result 324 states and 379 transitions. [2024-11-13 14:03:57,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:03:57,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 78 [2024-11-13 14:03:57,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:57,148 INFO L225 Difference]: With dead ends: 324 [2024-11-13 14:03:57,148 INFO L226 Difference]: Without dead ends: 317 [2024-11-13 14:03:57,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:03:57,149 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 21 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:57,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 100 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:03:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-13 14:03:57,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 313. [2024-11-13 14:03:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 286 states have (on average 1.1538461538461537) internal successors, (330), 291 states have internal predecessors, (330), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 14:03:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 368 transitions. [2024-11-13 14:03:57,173 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 368 transitions. Word has length 78 [2024-11-13 14:03:57,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:57,173 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 368 transitions. [2024-11-13 14:03:57,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 14:03:57,173 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 368 transitions. [2024-11-13 14:03:57,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 14:03:57,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:57,175 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:57,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-13 14:03:57,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:57,379 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:57,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:57,379 INFO L85 PathProgramCache]: Analyzing trace with hash -999755255, now seen corresponding path program 1 times [2024-11-13 14:03:57,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:57,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207354707] [2024-11-13 14:03:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:57,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:57,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:57,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:57,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:57,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:03:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:57,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:03:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 14:03:57,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:57,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207354707] [2024-11-13 14:03:57,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207354707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:57,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779778344] [2024-11-13 14:03:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:57,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:57,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:57,559 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:57,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 14:03:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:57,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:03:57,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:03:57,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:03:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 14:03:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779778344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:03:58,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:03:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2024-11-13 14:03:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338289172] [2024-11-13 14:03:58,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:03:58,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 14:03:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:03:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 14:03:58,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:03:58,182 INFO L87 Difference]: Start difference. First operand 313 states and 368 transitions. Second operand has 19 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-13 14:03:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:03:59,380 INFO L93 Difference]: Finished difference Result 417 states and 495 transitions. [2024-11-13 14:03:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-13 14:03:59,381 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 78 [2024-11-13 14:03:59,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:03:59,383 INFO L225 Difference]: With dead ends: 417 [2024-11-13 14:03:59,383 INFO L226 Difference]: Without dead ends: 403 [2024-11-13 14:03:59,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 147 SyntacticMatches, 7 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=761, Invalid=2431, Unknown=0, NotChecked=0, Total=3192 [2024-11-13 14:03:59,384 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 248 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:03:59,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 133 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:03:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-13 14:03:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 307. [2024-11-13 14:03:59,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 282 states have (on average 1.1134751773049645) internal successors, (314), 285 states have internal predecessors, (314), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 14:03:59,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 352 transitions. [2024-11-13 14:03:59,408 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 352 transitions. Word has length 78 [2024-11-13 14:03:59,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:03:59,408 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 352 transitions. [2024-11-13 14:03:59,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-13 14:03:59,409 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 352 transitions. [2024-11-13 14:03:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-13 14:03:59,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:03:59,410 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:03:59,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 14:03:59,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:59,614 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:03:59,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:03:59,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2053750671, now seen corresponding path program 1 times [2024-11-13 14:03:59,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:03:59,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506129204] [2024-11-13 14:03:59,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:59,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:03:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:59,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:03:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:59,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:03:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:59,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:03:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:59,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:03:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:59,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:03:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:59,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:03:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:59,723 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:03:59,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:03:59,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506129204] [2024-11-13 14:03:59,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506129204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:03:59,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460188860] [2024-11-13 14:03:59,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:03:59,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:03:59,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:03:59,726 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:03:59,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 14:03:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:03:59,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:03:59,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:03:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:03:59,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:00,010 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:04:00,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460188860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:00,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:00,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 14:04:00,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840131392] [2024-11-13 14:04:00,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:00,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:04:00,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:00,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:04:00,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:04:00,011 INFO L87 Difference]: Start difference. First operand 307 states and 352 transitions. Second operand has 11 states, 10 states have (on average 13.4) internal successors, (134), 11 states have internal predecessors, (134), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:04:00,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:00,248 INFO L93 Difference]: Finished difference Result 1042 states and 1257 transitions. [2024-11-13 14:04:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:04:00,248 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.4) internal successors, (134), 11 states have internal predecessors, (134), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 88 [2024-11-13 14:04:00,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:00,253 INFO L225 Difference]: With dead ends: 1042 [2024-11-13 14:04:00,253 INFO L226 Difference]: Without dead ends: 1040 [2024-11-13 14:04:00,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:04:00,254 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:00,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 153 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:04:00,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2024-11-13 14:04:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2024-11-13 14:04:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 969 states have (on average 1.0691434468524252) internal successors, (1036), 971 states have internal predecessors, (1036), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-13 14:04:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1168 transitions. [2024-11-13 14:04:00,332 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1168 transitions. Word has length 88 [2024-11-13 14:04:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:00,333 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1168 transitions. [2024-11-13 14:04:00,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.4) internal successors, (134), 11 states have internal predecessors, (134), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:04:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1168 transitions. [2024-11-13 14:04:00,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 14:04:00,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:00,335 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:00,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:00,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:00,536 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:00,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash -270536479, now seen corresponding path program 1 times [2024-11-13 14:04:00,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:00,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173282540] [2024-11-13 14:04:00,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:00,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:00,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:00,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:00,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:00,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:00,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:00,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 14:04:00,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:00,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173282540] [2024-11-13 14:04:00,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173282540] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:00,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005051391] [2024-11-13 14:04:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:00,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:00,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:00,652 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:00,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 14:04:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:00,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:04:00,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 66 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 14:04:00,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:04:00,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005051391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:00,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:00,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-11-13 14:04:00,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526043948] [2024-11-13 14:04:00,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:00,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:04:00,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:00,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:04:00,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:04:00,949 INFO L87 Difference]: Start difference. First operand 1040 states and 1168 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-13 14:04:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:01,493 INFO L93 Difference]: Finished difference Result 1934 states and 2170 transitions. [2024-11-13 14:04:01,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 14:04:01,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 91 [2024-11-13 14:04:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:01,501 INFO L225 Difference]: With dead ends: 1934 [2024-11-13 14:04:01,501 INFO L226 Difference]: Without dead ends: 1630 [2024-11-13 14:04:01,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:04:01,504 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 81 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:01,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 211 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:04:01,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2024-11-13 14:04:01,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1243. [2024-11-13 14:04:01,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1160 states have (on average 1.0672413793103448) internal successors, (1238), 1162 states have internal predecessors, (1238), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:04:01,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1394 transitions. [2024-11-13 14:04:01,641 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1394 transitions. Word has length 91 [2024-11-13 14:04:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:01,641 INFO L471 AbstractCegarLoop]: Abstraction has 1243 states and 1394 transitions. [2024-11-13 14:04:01,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-13 14:04:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1394 transitions. [2024-11-13 14:04:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 14:04:01,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:01,643 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:01,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 14:04:01,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:01,847 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:01,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:01,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1979462615, now seen corresponding path program 1 times [2024-11-13 14:04:01,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:01,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462201420] [2024-11-13 14:04:01,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:01,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:01,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:01,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:01,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:01,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:01,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:01,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:01,956 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:04:01,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:01,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462201420] [2024-11-13 14:04:01,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462201420] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:01,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92468627] [2024-11-13 14:04:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:01,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:01,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:01,960 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:01,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 14:04:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:02,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:04:02,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:02,111 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:04:02,111 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:02,265 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 14:04:02,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92468627] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:02,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:02,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 14:04:02,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800252576] [2024-11-13 14:04:02,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:02,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:04:02,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:02,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:04:02,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:04:02,267 INFO L87 Difference]: Start difference. First operand 1243 states and 1394 transitions. Second operand has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:04:02,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:02,513 INFO L93 Difference]: Finished difference Result 2010 states and 2258 transitions. [2024-11-13 14:04:02,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:04:02,514 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 91 [2024-11-13 14:04:02,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:02,521 INFO L225 Difference]: With dead ends: 2010 [2024-11-13 14:04:02,522 INFO L226 Difference]: Without dead ends: 2009 [2024-11-13 14:04:02,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:04:02,523 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 79 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:02,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 183 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:04:02,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2024-11-13 14:04:02,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 2001. [2024-11-13 14:04:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1870 states have (on average 1.0663101604278076) internal successors, (1994), 1872 states have internal predecessors, (1994), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-13 14:04:02,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2246 transitions. [2024-11-13 14:04:02,683 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2246 transitions. Word has length 91 [2024-11-13 14:04:02,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:02,684 INFO L471 AbstractCegarLoop]: Abstraction has 2001 states and 2246 transitions. [2024-11-13 14:04:02,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:04:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2246 transitions. [2024-11-13 14:04:02,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 14:04:02,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:02,686 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:02,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 14:04:02,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:02,887 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:02,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:02,887 INFO L85 PathProgramCache]: Analyzing trace with hash 698934031, now seen corresponding path program 1 times [2024-11-13 14:04:02,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:02,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612350194] [2024-11-13 14:04:02,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:02,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:03,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:03,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:03,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:03,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:03,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:03,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:03,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-13 14:04:03,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:03,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612350194] [2024-11-13 14:04:03,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612350194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:03,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617368348] [2024-11-13 14:04:03,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:03,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:03,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:03,058 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:03,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 14:04:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:03,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:04:03,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-13 14:04:03,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-13 14:04:03,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617368348] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:03,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:03,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-11-13 14:04:03,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150866314] [2024-11-13 14:04:03,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:03,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:04:03,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:03,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:04:03,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:04:03,519 INFO L87 Difference]: Start difference. First operand 2001 states and 2246 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:04:04,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:04,021 INFO L93 Difference]: Finished difference Result 4459 states and 5002 transitions. [2024-11-13 14:04:04,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:04:04,024 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 116 [2024-11-13 14:04:04,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:04,042 INFO L225 Difference]: With dead ends: 4459 [2024-11-13 14:04:04,042 INFO L226 Difference]: Without dead ends: 3299 [2024-11-13 14:04:04,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 237 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:04:04,046 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 26 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:04,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 315 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:04:04,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-11-13 14:04:04,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2298. [2024-11-13 14:04:04,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 2149 states have (on average 1.0604932526756632) internal successors, (2279), 2151 states have internal predecessors, (2279), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-13 14:04:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 2567 transitions. [2024-11-13 14:04:04,266 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 2567 transitions. Word has length 116 [2024-11-13 14:04:04,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:04,266 INFO L471 AbstractCegarLoop]: Abstraction has 2298 states and 2567 transitions. [2024-11-13 14:04:04,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:04:04,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 2567 transitions. [2024-11-13 14:04:04,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 14:04:04,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:04,269 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:04,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 14:04:04,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:04,470 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:04,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:04,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1404397086, now seen corresponding path program 2 times [2024-11-13 14:04:04,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:04,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040128207] [2024-11-13 14:04:04,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:04,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:04:04,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350387379] [2024-11-13 14:04:04,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:04:04,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:04,495 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:04,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 14:04:04,569 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:04:04,569 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:04,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:04:04,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:04,945 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-13 14:04:04,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:05,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:05,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040128207] [2024-11-13 14:04:05,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:04:05,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350387379] [2024-11-13 14:04:05,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350387379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:05,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:05,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-13 14:04:05,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898816631] [2024-11-13 14:04:05,520 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:05,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:04:05,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:05,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:04:05,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:04:05,521 INFO L87 Difference]: Start difference. First operand 2298 states and 2567 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:04:05,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:05,908 INFO L93 Difference]: Finished difference Result 2589 states and 2888 transitions. [2024-11-13 14:04:05,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:04:05,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 136 [2024-11-13 14:04:05,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:05,917 INFO L225 Difference]: With dead ends: 2589 [2024-11-13 14:04:05,917 INFO L226 Difference]: Without dead ends: 2588 [2024-11-13 14:04:05,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:04:05,919 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 19 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:05,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 235 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:04:05,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2024-11-13 14:04:06,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2330. [2024-11-13 14:04:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 2179 states have (on average 1.0596603946764571) internal successors, (2309), 2181 states have internal predecessors, (2309), 146 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-13 14:04:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 2601 transitions. [2024-11-13 14:04:06,098 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 2601 transitions. Word has length 136 [2024-11-13 14:04:06,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:06,100 INFO L471 AbstractCegarLoop]: Abstraction has 2330 states and 2601 transitions. [2024-11-13 14:04:06,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 14:04:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 2601 transitions. [2024-11-13 14:04:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 14:04:06,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:06,103 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:06,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:06,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-13 14:04:06,304 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:06,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:06,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2055664408, now seen corresponding path program 3 times [2024-11-13 14:04:06,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:06,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699337490] [2024-11-13 14:04:06,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:06,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:04:06,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576769114] [2024-11-13 14:04:06,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:04:06,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:06,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:06,337 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:06,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 14:04:06,414 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-13 14:04:06,414 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:06,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:04:06,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-13 14:04:06,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:07,005 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-13 14:04:07,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:07,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699337490] [2024-11-13 14:04:07,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:04:07,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576769114] [2024-11-13 14:04:07,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576769114] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:07,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:04:07,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-13 14:04:07,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153788055] [2024-11-13 14:04:07,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:07,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:04:07,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:07,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:04:07,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:04:07,007 INFO L87 Difference]: Start difference. First operand 2330 states and 2601 transitions. Second operand has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:04:08,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:08,665 INFO L93 Difference]: Finished difference Result 3162 states and 3521 transitions. [2024-11-13 14:04:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-13 14:04:08,666 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 136 [2024-11-13 14:04:08,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:08,676 INFO L225 Difference]: With dead ends: 3162 [2024-11-13 14:04:08,676 INFO L226 Difference]: Without dead ends: 3161 [2024-11-13 14:04:08,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=372, Invalid=1188, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 14:04:08,678 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 303 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:08,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 289 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:04:08,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2024-11-13 14:04:08,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 2385. [2024-11-13 14:04:08,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2231 states have (on average 1.0578216046615867) internal successors, (2360), 2233 states have internal predecessors, (2360), 149 states have call successors, (149), 2 states have call predecessors, (149), 2 states have return successors, (149), 149 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-13 14:04:08,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 2658 transitions. [2024-11-13 14:04:08,874 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 2658 transitions. Word has length 136 [2024-11-13 14:04:08,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:08,875 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 2658 transitions. [2024-11-13 14:04:08,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:04:08,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 2658 transitions. [2024-11-13 14:04:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 14:04:08,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:08,878 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:08,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-13 14:04:09,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-13 14:04:09,079 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:09,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:09,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1115520698, now seen corresponding path program 3 times [2024-11-13 14:04:09,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:09,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389694639] [2024-11-13 14:04:09,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:09,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:04:09,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825909136] [2024-11-13 14:04:09,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:04:09,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:09,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:09,125 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:09,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 14:04:09,190 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 14:04:09,190 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:09,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:04:09,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:09,245 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 101 proven. 5 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-13 14:04:09,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:09,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:09,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389694639] [2024-11-13 14:04:09,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:04:09,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825909136] [2024-11-13 14:04:09,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825909136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:09,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:09,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-13 14:04:09,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522759886] [2024-11-13 14:04:09,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:09,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:04:09,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:09,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:04:09,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:04:09,495 INFO L87 Difference]: Start difference. First operand 2385 states and 2658 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:04:09,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:09,700 INFO L93 Difference]: Finished difference Result 3415 states and 3801 transitions. [2024-11-13 14:04:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:04:09,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 136 [2024-11-13 14:04:09,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:09,708 INFO L225 Difference]: With dead ends: 3415 [2024-11-13 14:04:09,709 INFO L226 Difference]: Without dead ends: 2108 [2024-11-13 14:04:09,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:04:09,712 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 22 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:09,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 77 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:04:09,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2024-11-13 14:04:09,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2107. [2024-11-13 14:04:09,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 1970 states have (on average 1.0532994923857868) internal successors, (2075), 1972 states have internal predecessors, (2075), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-13 14:04:09,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2339 transitions. [2024-11-13 14:04:09,941 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2339 transitions. Word has length 136 [2024-11-13 14:04:09,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:09,942 INFO L471 AbstractCegarLoop]: Abstraction has 2107 states and 2339 transitions. [2024-11-13 14:04:09,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:04:09,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2339 transitions. [2024-11-13 14:04:09,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-13 14:04:09,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:09,946 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:09,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-13 14:04:10,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 14:04:10,147 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:10,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:10,148 INFO L85 PathProgramCache]: Analyzing trace with hash 297145517, now seen corresponding path program 4 times [2024-11-13 14:04:10,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:10,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701263787] [2024-11-13 14:04:10,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:10,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:04:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:04:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-13 14:04:10,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:10,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701263787] [2024-11-13 14:04:10,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701263787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:10,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578116884] [2024-11-13 14:04:10,442 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 14:04:10,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:10,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:10,445 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:10,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 14:04:10,521 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 14:04:10,522 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:10,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:04:10,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:10,802 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-13 14:04:10,802 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-13 14:04:11,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578116884] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:11,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:11,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-11-13 14:04:11,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862212823] [2024-11-13 14:04:11,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:11,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 14:04:11,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:11,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 14:04:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:04:11,069 INFO L87 Difference]: Start difference. First operand 2107 states and 2339 transitions. Second operand has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-13 14:04:11,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:11,708 INFO L93 Difference]: Finished difference Result 4286 states and 4766 transitions. [2024-11-13 14:04:11,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:04:11,708 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 156 [2024-11-13 14:04:11,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:11,719 INFO L225 Difference]: With dead ends: 4286 [2024-11-13 14:04:11,719 INFO L226 Difference]: Without dead ends: 3262 [2024-11-13 14:04:11,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 318 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:04:11,722 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 28 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:11,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 494 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:04:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-11-13 14:04:11,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2500. [2024-11-13 14:04:11,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2500 states, 2339 states have (on average 1.0470286447199657) internal successors, (2449), 2341 states have internal predecessors, (2449), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-13 14:04:11,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2500 states to 2500 states and 2761 transitions. [2024-11-13 14:04:11,932 INFO L78 Accepts]: Start accepts. Automaton has 2500 states and 2761 transitions. Word has length 156 [2024-11-13 14:04:11,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:11,933 INFO L471 AbstractCegarLoop]: Abstraction has 2500 states and 2761 transitions. [2024-11-13 14:04:11,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-13 14:04:11,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states and 2761 transitions. [2024-11-13 14:04:11,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-13 14:04:11,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:11,938 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:11,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:12,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-13 14:04:12,138 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:12,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:12,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1062757188, now seen corresponding path program 5 times [2024-11-13 14:04:12,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:12,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475806667] [2024-11-13 14:04:12,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:12,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:04:12,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188271857] [2024-11-13 14:04:12,165 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 14:04:12,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:12,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:12,168 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:12,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-13 14:04:12,276 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-13 14:04:12,276 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:12,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-13 14:04:12,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 12 proven. 433 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-13 14:04:13,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:13,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:13,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475806667] [2024-11-13 14:04:13,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:04:13,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188271857] [2024-11-13 14:04:13,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188271857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:13,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:13,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-13 14:04:13,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795771777] [2024-11-13 14:04:13,537 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:13,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 14:04:13,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:13,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 14:04:13,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:04:13,539 INFO L87 Difference]: Start difference. First operand 2500 states and 2761 transitions. Second operand has 20 states, 19 states have (on average 7.105263157894737) internal successors, (135), 20 states have internal predecessors, (135), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:04:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:14,552 INFO L93 Difference]: Finished difference Result 3808 states and 4208 transitions. [2024-11-13 14:04:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 14:04:14,552 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.105263157894737) internal successors, (135), 20 states have internal predecessors, (135), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 176 [2024-11-13 14:04:14,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:14,562 INFO L225 Difference]: With dead ends: 3808 [2024-11-13 14:04:14,562 INFO L226 Difference]: Without dead ends: 2712 [2024-11-13 14:04:14,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:04:14,568 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 23 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:14,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 435 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:04:14,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2024-11-13 14:04:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2564. [2024-11-13 14:04:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2399 states have (on average 1.0458524385160484) internal successors, (2509), 2401 states have internal predecessors, (2509), 160 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-13 14:04:14,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 2829 transitions. [2024-11-13 14:04:14,820 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 2829 transitions. Word has length 176 [2024-11-13 14:04:14,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:14,821 INFO L471 AbstractCegarLoop]: Abstraction has 2564 states and 2829 transitions. [2024-11-13 14:04:14,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.105263157894737) internal successors, (135), 20 states have internal predecessors, (135), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:04:14,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 2829 transitions. [2024-11-13 14:04:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-13 14:04:14,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:14,827 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:14,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-13 14:04:15,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-13 14:04:15,029 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:15,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:15,029 INFO L85 PathProgramCache]: Analyzing trace with hash 91579452, now seen corresponding path program 2 times [2024-11-13 14:04:15,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:15,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828372245] [2024-11-13 14:04:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:15,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:04:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:04:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:04:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:04:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:15,309 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:04:15,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:15,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828372245] [2024-11-13 14:04:15,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828372245] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:15,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261281366] [2024-11-13 14:04:15,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:04:15,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:15,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:15,312 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:15,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-13 14:04:15,418 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:04:15,418 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:15,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:04:15,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:04:15,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:15,960 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:04:15,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261281366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:15,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:15,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-13 14:04:15,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493664008] [2024-11-13 14:04:15,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:15,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 14:04:15,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:15,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 14:04:15,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:04:15,962 INFO L87 Difference]: Start difference. First operand 2564 states and 2829 transitions. Second operand has 21 states, 20 states have (on average 14.2) internal successors, (284), 21 states have internal predecessors, (284), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-13 14:04:16,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:16,455 INFO L93 Difference]: Finished difference Result 4485 states and 5109 transitions. [2024-11-13 14:04:16,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 14:04:16,455 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.2) internal successors, (284), 21 states have internal predecessors, (284), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 188 [2024-11-13 14:04:16,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:16,468 INFO L225 Difference]: With dead ends: 4485 [2024-11-13 14:04:16,468 INFO L226 Difference]: Without dead ends: 4484 [2024-11-13 14:04:16,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:04:16,470 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 20 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:16,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 171 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:04:16,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2024-11-13 14:04:16,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4484. [2024-11-13 14:04:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4484 states, 4199 states have (on average 1.0547749464158134) internal successors, (4429), 4201 states have internal predecessors, (4429), 280 states have call successors, (280), 2 states have call predecessors, (280), 2 states have return successors, (280), 280 states have call predecessors, (280), 280 states have call successors, (280) [2024-11-13 14:04:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 4989 transitions. [2024-11-13 14:04:16,824 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 4989 transitions. Word has length 188 [2024-11-13 14:04:16,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:16,825 INFO L471 AbstractCegarLoop]: Abstraction has 4484 states and 4989 transitions. [2024-11-13 14:04:16,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.2) internal successors, (284), 21 states have internal predecessors, (284), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-13 14:04:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 4989 transitions. [2024-11-13 14:04:16,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-13 14:04:16,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:16,829 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:16,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-13 14:04:17,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:17,033 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:17,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:17,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1498770938, now seen corresponding path program 2 times [2024-11-13 14:04:17,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:17,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061767030] [2024-11-13 14:04:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:17,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:04:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:04:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:04:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:04:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,304 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:04:17,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:17,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061767030] [2024-11-13 14:04:17,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061767030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:17,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165835045] [2024-11-13 14:04:17,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:04:17,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:17,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:17,307 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:17,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-13 14:04:17,403 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:04:17,403 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:17,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:04:17,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:04:17,596 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:04:17,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165835045] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:17,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:17,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-13 14:04:17,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249155896] [2024-11-13 14:04:17,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:17,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 14:04:17,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 14:04:17,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:04:17,963 INFO L87 Difference]: Start difference. First operand 4484 states and 4989 transitions. Second operand has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-13 14:04:18,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:18,749 INFO L93 Difference]: Finished difference Result 8493 states and 9479 transitions. [2024-11-13 14:04:18,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 14:04:18,750 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 191 [2024-11-13 14:04:18,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:18,787 INFO L225 Difference]: With dead ends: 8493 [2024-11-13 14:04:18,787 INFO L226 Difference]: Without dead ends: 8492 [2024-11-13 14:04:18,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:04:18,790 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 284 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:18,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 349 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:04:18,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8492 states. [2024-11-13 14:04:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8492 to 8474. [2024-11-13 14:04:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8474 states, 7939 states have (on average 1.0554225973044464) internal successors, (8379), 7941 states have internal predecessors, (8379), 530 states have call successors, (530), 2 states have call predecessors, (530), 2 states have return successors, (530), 530 states have call predecessors, (530), 530 states have call successors, (530) [2024-11-13 14:04:19,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8474 states to 8474 states and 9439 transitions. [2024-11-13 14:04:19,245 INFO L78 Accepts]: Start accepts. Automaton has 8474 states and 9439 transitions. Word has length 191 [2024-11-13 14:04:19,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:19,246 INFO L471 AbstractCegarLoop]: Abstraction has 8474 states and 9439 transitions. [2024-11-13 14:04:19,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-13 14:04:19,246 INFO L276 IsEmpty]: Start isEmpty. Operand 8474 states and 9439 transitions. [2024-11-13 14:04:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-13 14:04:19,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:19,249 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:19,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-13 14:04:19,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:19,453 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:19,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:19,453 INFO L85 PathProgramCache]: Analyzing trace with hash -379957173, now seen corresponding path program 6 times [2024-11-13 14:04:19,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:19,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320557505] [2024-11-13 14:04:19,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:19,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:04:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:04:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:04:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:04:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 135 proven. 412 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:04:19,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:19,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320557505] [2024-11-13 14:04:19,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320557505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:19,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81500815] [2024-11-13 14:04:19,777 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 14:04:19,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:19,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:19,779 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:19,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-13 14:04:19,924 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-13 14:04:19,925 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:19,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:04:19,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:04:20,278 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 14:04:20,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81500815] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:20,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:20,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-11-13 14:04:20,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486069399] [2024-11-13 14:04:20,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:20,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 14:04:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 14:04:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:04:20,548 INFO L87 Difference]: Start difference. First operand 8474 states and 9439 transitions. Second operand has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-13 14:04:21,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:21,643 INFO L93 Difference]: Finished difference Result 19106 states and 21324 transitions. [2024-11-13 14:04:21,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:04:21,643 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 196 [2024-11-13 14:04:21,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:21,685 INFO L225 Difference]: With dead ends: 19106 [2024-11-13 14:04:21,685 INFO L226 Difference]: Without dead ends: 13932 [2024-11-13 14:04:21,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 399 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:04:21,695 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 30 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:21,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 373 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:04:21,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13932 states. [2024-11-13 14:04:22,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13932 to 9628. [2024-11-13 14:04:22,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9628 states, 9021 states have (on average 1.0504378671987584) internal successors, (9476), 9023 states have internal predecessors, (9476), 602 states have call successors, (602), 2 states have call predecessors, (602), 2 states have return successors, (602), 602 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-13 14:04:22,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9628 states to 9628 states and 10680 transitions. [2024-11-13 14:04:22,358 INFO L78 Accepts]: Start accepts. Automaton has 9628 states and 10680 transitions. Word has length 196 [2024-11-13 14:04:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:22,359 INFO L471 AbstractCegarLoop]: Abstraction has 9628 states and 10680 transitions. [2024-11-13 14:04:22,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-13 14:04:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 9628 states and 10680 transitions. [2024-11-13 14:04:22,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-13 14:04:22,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:22,363 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:22,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:22,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:22,564 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:22,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1945990635, now seen corresponding path program 7 times [2024-11-13 14:04:22,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:22,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550139821] [2024-11-13 14:04:22,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:22,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:04:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:04:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:04:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:04:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 179 proven. 338 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-13 14:04:22,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:22,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550139821] [2024-11-13 14:04:22,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550139821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:22,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231284566] [2024-11-13 14:04:22,825 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-13 14:04:22,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:22,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:22,827 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:22,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-13 14:04:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:22,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:04:22,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:23,306 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 317 proven. 200 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-13 14:04:23,306 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:23,658 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 179 proven. 338 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-13 14:04:23,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231284566] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:23,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:23,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-13 14:04:23,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126929826] [2024-11-13 14:04:23,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:23,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 14:04:23,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:23,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 14:04:23,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:04:23,661 INFO L87 Difference]: Start difference. First operand 9628 states and 10680 transitions. Second operand has 22 states, 22 states have (on average 14.454545454545455) internal successors, (318), 22 states have internal predecessors, (318), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-13 14:04:25,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:25,132 INFO L93 Difference]: Finished difference Result 25363 states and 28275 transitions. [2024-11-13 14:04:25,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:04:25,133 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 14.454545454545455) internal successors, (318), 22 states have internal predecessors, (318), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 196 [2024-11-13 14:04:25,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:25,185 INFO L225 Difference]: With dead ends: 25363 [2024-11-13 14:04:25,185 INFO L226 Difference]: Without dead ends: 17859 [2024-11-13 14:04:25,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 400 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:04:25,197 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 26 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:25,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 384 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:04:25,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17859 states. [2024-11-13 14:04:26,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17859 to 8946. [2024-11-13 14:04:26,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8946 states, 8380 states have (on average 1.0485680190930788) internal successors, (8787), 8382 states have internal predecessors, (8787), 561 states have call successors, (561), 2 states have call predecessors, (561), 2 states have return successors, (561), 561 states have call predecessors, (561), 561 states have call successors, (561) [2024-11-13 14:04:26,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8946 states to 8946 states and 9909 transitions. [2024-11-13 14:04:26,195 INFO L78 Accepts]: Start accepts. Automaton has 8946 states and 9909 transitions. Word has length 196 [2024-11-13 14:04:26,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:26,195 INFO L471 AbstractCegarLoop]: Abstraction has 8946 states and 9909 transitions. [2024-11-13 14:04:26,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.454545454545455) internal successors, (318), 22 states have internal predecessors, (318), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-13 14:04:26,195 INFO L276 IsEmpty]: Start isEmpty. Operand 8946 states and 9909 transitions. [2024-11-13 14:04:26,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-13 14:04:26,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:26,198 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:26,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-13 14:04:26,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-13 14:04:26,398 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:26,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:26,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1699208538, now seen corresponding path program 8 times [2024-11-13 14:04:26,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:26,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267591726] [2024-11-13 14:04:26,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:26,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:04:26,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998809622] [2024-11-13 14:04:26,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:04:26,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:26,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:26,437 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:26,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-13 14:04:26,523 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:04:26,523 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:26,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:04:26,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:27,084 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-13 14:04:27,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:27,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:27,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267591726] [2024-11-13 14:04:27,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:04:27,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998809622] [2024-11-13 14:04:27,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998809622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:27,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:27,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-13 14:04:27,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483083392] [2024-11-13 14:04:27,587 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:27,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:04:27,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:27,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:04:27,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:04:27,591 INFO L87 Difference]: Start difference. First operand 8946 states and 9909 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 14:04:28,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:28,494 INFO L93 Difference]: Finished difference Result 9557 states and 10586 transitions. [2024-11-13 14:04:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:04:28,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 216 [2024-11-13 14:04:28,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:28,518 INFO L225 Difference]: With dead ends: 9557 [2024-11-13 14:04:28,518 INFO L226 Difference]: Without dead ends: 9556 [2024-11-13 14:04:28,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:04:28,523 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 19 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:28,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 394 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:04:28,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9556 states. [2024-11-13 14:04:29,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9556 to 9256. [2024-11-13 14:04:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9256 states, 8671 states have (on average 1.048667973705455) internal successors, (9093), 8673 states have internal predecessors, (9093), 580 states have call successors, (580), 2 states have call predecessors, (580), 2 states have return successors, (580), 580 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-13 14:04:29,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9256 states to 9256 states and 10253 transitions. [2024-11-13 14:04:29,310 INFO L78 Accepts]: Start accepts. Automaton has 9256 states and 10253 transitions. Word has length 216 [2024-11-13 14:04:29,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:29,311 INFO L471 AbstractCegarLoop]: Abstraction has 9256 states and 10253 transitions. [2024-11-13 14:04:29,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 14:04:29,311 INFO L276 IsEmpty]: Start isEmpty. Operand 9256 states and 10253 transitions. [2024-11-13 14:04:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-13 14:04:29,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:29,315 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:29,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-13 14:04:29,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-13 14:04:29,516 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:29,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:29,516 INFO L85 PathProgramCache]: Analyzing trace with hash -8153623, now seen corresponding path program 9 times [2024-11-13 14:04:29,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:29,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107739165] [2024-11-13 14:04:29,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:29,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:04:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:04:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:04:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:04:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 14:04:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-13 14:04:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 203 proven. 638 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 14:04:29,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:29,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107739165] [2024-11-13 14:04:29,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107739165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:29,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933774225] [2024-11-13 14:04:29,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:04:29,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:29,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:29,959 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:29,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-13 14:04:30,059 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-13 14:04:30,059 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:30,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:04:30,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:30,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 0 proven. 621 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-13 14:04:30,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:31,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933774225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:31,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:04:31,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 22 [2024-11-13 14:04:31,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977425767] [2024-11-13 14:04:31,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:31,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 14:04:31,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:31,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 14:04:31,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:04:31,252 INFO L87 Difference]: Start difference. First operand 9256 states and 10253 transitions. Second operand has 22 states, 22 states have (on average 12.545454545454545) internal successors, (276), 22 states have internal predecessors, (276), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-13 14:04:33,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:33,584 INFO L93 Difference]: Finished difference Result 19623 states and 21806 transitions. [2024-11-13 14:04:33,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-13 14:04:33,584 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 12.545454545454545) internal successors, (276), 22 states have internal predecessors, (276), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 236 [2024-11-13 14:04:33,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:33,605 INFO L225 Difference]: With dead ends: 19623 [2024-11-13 14:04:33,605 INFO L226 Difference]: Without dead ends: 14233 [2024-11-13 14:04:33,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=416, Invalid=2890, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 14:04:33,612 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 366 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:33,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1055 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 14:04:33,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14233 states. [2024-11-13 14:04:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14233 to 10388. [2024-11-13 14:04:34,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10388 states, 9732 states have (on average 1.0434648581997534) internal successors, (10155), 9734 states have internal predecessors, (10155), 651 states have call successors, (651), 2 states have call predecessors, (651), 2 states have return successors, (651), 651 states have call predecessors, (651), 651 states have call successors, (651) [2024-11-13 14:04:34,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10388 states to 10388 states and 11457 transitions. [2024-11-13 14:04:34,325 INFO L78 Accepts]: Start accepts. Automaton has 10388 states and 11457 transitions. Word has length 236 [2024-11-13 14:04:34,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:34,325 INFO L471 AbstractCegarLoop]: Abstraction has 10388 states and 11457 transitions. [2024-11-13 14:04:34,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 12.545454545454545) internal successors, (276), 22 states have internal predecessors, (276), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-13 14:04:34,326 INFO L276 IsEmpty]: Start isEmpty. Operand 10388 states and 11457 transitions. [2024-11-13 14:04:34,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-13 14:04:34,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:34,329 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:34,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-13 14:04:34,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:34,534 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:34,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash -846977032, now seen corresponding path program 10 times [2024-11-13 14:04:34,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:34,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450984515] [2024-11-13 14:04:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:34,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:04:34,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803010003] [2024-11-13 14:04:34,573 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 14:04:34,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:34,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:34,575 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:34,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-13 14:04:34,743 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 14:04:34,743 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:34,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 14:04:34,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 30 proven. 862 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-13 14:04:35,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:36,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:36,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450984515] [2024-11-13 14:04:36,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:04:36,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803010003] [2024-11-13 14:04:36,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803010003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:36,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:36,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-13 14:04:36,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868289518] [2024-11-13 14:04:36,116 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:36,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:04:36,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:36,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:04:36,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:04:36,117 INFO L87 Difference]: Start difference. First operand 10388 states and 11457 transitions. Second operand has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:04:37,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:37,677 INFO L93 Difference]: Finished difference Result 10999 states and 12132 transitions. [2024-11-13 14:04:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:04:37,678 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 256 [2024-11-13 14:04:37,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:37,697 INFO L225 Difference]: With dead ends: 10999 [2024-11-13 14:04:37,697 INFO L226 Difference]: Without dead ends: 10998 [2024-11-13 14:04:37,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:04:37,701 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 36 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:37,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 509 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:04:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10998 states. [2024-11-13 14:04:38,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10998 to 10698. [2024-11-13 14:04:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10698 states, 10023 states have (on average 1.0435997206425223) internal successors, (10460), 10025 states have internal predecessors, (10460), 670 states have call successors, (670), 2 states have call predecessors, (670), 2 states have return successors, (670), 670 states have call predecessors, (670), 670 states have call successors, (670) [2024-11-13 14:04:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10698 states to 10698 states and 11800 transitions. [2024-11-13 14:04:38,522 INFO L78 Accepts]: Start accepts. Automaton has 10698 states and 11800 transitions. Word has length 256 [2024-11-13 14:04:38,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:38,523 INFO L471 AbstractCegarLoop]: Abstraction has 10698 states and 11800 transitions. [2024-11-13 14:04:38,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:04:38,523 INFO L276 IsEmpty]: Start isEmpty. Operand 10698 states and 11800 transitions. [2024-11-13 14:04:38,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-13 14:04:38,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:38,526 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:38,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:38,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:38,727 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:38,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash -540524660, now seen corresponding path program 11 times [2024-11-13 14:04:38,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:38,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498475393] [2024-11-13 14:04:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:38,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:04:38,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909043801] [2024-11-13 14:04:38,767 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 14:04:38,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:38,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:38,770 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:38,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-13 14:04:38,911 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-11-13 14:04:38,911 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:38,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-13 14:04:38,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 45 proven. 976 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-13 14:04:40,690 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:41,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498475393] [2024-11-13 14:04:41,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:04:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909043801] [2024-11-13 14:04:41,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909043801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:41,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:41,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-11-13 14:04:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107710127] [2024-11-13 14:04:41,445 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:41,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-13 14:04:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:41,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-13 14:04:41,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=793, Unknown=0, NotChecked=0, Total=930 [2024-11-13 14:04:41,449 INFO L87 Difference]: Start difference. First operand 10698 states and 11800 transitions. Second operand has 29 states, 28 states have (on average 6.321428571428571) internal successors, (177), 29 states have internal predecessors, (177), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-13 14:04:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:43,418 INFO L93 Difference]: Finished difference Result 12682 states and 13942 transitions. [2024-11-13 14:04:43,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 14:04:43,420 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.321428571428571) internal successors, (177), 29 states have internal predecessors, (177), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) Word has length 256 [2024-11-13 14:04:43,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:43,436 INFO L225 Difference]: With dead ends: 12682 [2024-11-13 14:04:43,436 INFO L226 Difference]: Without dead ends: 11330 [2024-11-13 14:04:43,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=391, Invalid=1865, Unknown=0, NotChecked=0, Total=2256 [2024-11-13 14:04:43,440 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 41 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:43,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 502 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:04:43,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11330 states. [2024-11-13 14:04:44,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11330 to 10705. [2024-11-13 14:04:44,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10705 states, 10030 states have (on average 1.043369890329013) internal successors, (10465), 10032 states have internal predecessors, (10465), 670 states have call successors, (670), 2 states have call predecessors, (670), 2 states have return successors, (670), 670 states have call predecessors, (670), 670 states have call successors, (670) [2024-11-13 14:04:44,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10705 states to 10705 states and 11805 transitions. [2024-11-13 14:04:44,256 INFO L78 Accepts]: Start accepts. Automaton has 10705 states and 11805 transitions. Word has length 256 [2024-11-13 14:04:44,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:44,256 INFO L471 AbstractCegarLoop]: Abstraction has 10705 states and 11805 transitions. [2024-11-13 14:04:44,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.321428571428571) internal successors, (177), 29 states have internal predecessors, (177), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-13 14:04:44,257 INFO L276 IsEmpty]: Start isEmpty. Operand 10705 states and 11805 transitions. [2024-11-13 14:04:44,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-13 14:04:44,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:44,260 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:44,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:44,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-13 14:04:44,465 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:44,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:44,465 INFO L85 PathProgramCache]: Analyzing trace with hash -48241273, now seen corresponding path program 12 times [2024-11-13 14:04:44,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:44,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717198120] [2024-11-13 14:04:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:44,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:04:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:04:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:04:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:04:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 14:04:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-13 14:04:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-13 14:04:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-13 14:04:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 287 proven. 912 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-13 14:04:44,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:44,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717198120] [2024-11-13 14:04:44,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717198120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:44,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315672299] [2024-11-13 14:04:44,925 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 14:04:44,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:44,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:44,927 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:44,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-13 14:04:45,164 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-11-13 14:04:45,164 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:45,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:04:45,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-13 14:04:45,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-13 14:04:46,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315672299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:46,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:46,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 24 [2024-11-13 14:04:46,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998549562] [2024-11-13 14:04:46,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:46,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 14:04:46,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:46,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 14:04:46,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:04:46,022 INFO L87 Difference]: Start difference. First operand 10705 states and 11805 transitions. Second operand has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 14:04:47,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:47,542 INFO L93 Difference]: Finished difference Result 21020 states and 23271 transitions. [2024-11-13 14:04:47,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:04:47,543 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) Word has length 276 [2024-11-13 14:04:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:47,573 INFO L225 Difference]: With dead ends: 21020 [2024-11-13 14:04:47,573 INFO L226 Difference]: Without dead ends: 15860 [2024-11-13 14:04:47,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 561 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-11-13 14:04:47,585 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 30 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:47,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 874 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:04:47,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15860 states. [2024-11-13 14:04:48,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15860 to 12339. [2024-11-13 14:04:48,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12339 states, 11562 states have (on average 1.0390070921985815) internal successors, (12013), 11564 states have internal predecessors, (12013), 772 states have call successors, (772), 2 states have call predecessors, (772), 2 states have return successors, (772), 772 states have call predecessors, (772), 772 states have call successors, (772) [2024-11-13 14:04:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12339 states to 12339 states and 13557 transitions. [2024-11-13 14:04:48,494 INFO L78 Accepts]: Start accepts. Automaton has 12339 states and 13557 transitions. Word has length 276 [2024-11-13 14:04:48,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:48,495 INFO L471 AbstractCegarLoop]: Abstraction has 12339 states and 13557 transitions. [2024-11-13 14:04:48,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 14:04:48,495 INFO L276 IsEmpty]: Start isEmpty. Operand 12339 states and 13557 transitions. [2024-11-13 14:04:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-13 14:04:48,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:48,499 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:48,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-13 14:04:48,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-13 14:04:48,700 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:48,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:48,700 INFO L85 PathProgramCache]: Analyzing trace with hash -548766570, now seen corresponding path program 13 times [2024-11-13 14:04:48,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:48,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486870033] [2024-11-13 14:04:48,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:48,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:04:48,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505282377] [2024-11-13 14:04:48,750 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-13 14:04:48,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:48,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:48,753 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:48,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-13 14:04:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:48,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-13 14:04:48,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 39 proven. 1402 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-13 14:04:50,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:51,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:51,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486870033] [2024-11-13 14:04:51,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:04:51,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505282377] [2024-11-13 14:04:51,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505282377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:51,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:51,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2024-11-13 14:04:51,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443055263] [2024-11-13 14:04:51,433 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:51,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 14:04:51,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:51,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 14:04:51,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1240, Unknown=0, NotChecked=0, Total=1332 [2024-11-13 14:04:51,434 INFO L87 Difference]: Start difference. First operand 12339 states and 13557 transitions. Second operand has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-13 14:04:54,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:54,992 INFO L93 Difference]: Finished difference Result 18110 states and 19950 transitions. [2024-11-13 14:04:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-13 14:04:54,993 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 296 [2024-11-13 14:04:54,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:55,008 INFO L225 Difference]: With dead ends: 18110 [2024-11-13 14:04:55,008 INFO L226 Difference]: Without dead ends: 12759 [2024-11-13 14:04:55,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=200, Invalid=2350, Unknown=0, NotChecked=0, Total=2550 [2024-11-13 14:04:55,016 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 154 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 6566 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 6586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 6566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:55,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1490 Invalid, 6586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 6566 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 14:04:55,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12759 states. [2024-11-13 14:04:55,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12759 to 12451. [2024-11-13 14:04:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12451 states, 11667 states have (on average 1.038656038398903) internal successors, (12118), 11669 states have internal predecessors, (12118), 779 states have call successors, (779), 2 states have call predecessors, (779), 2 states have return successors, (779), 779 states have call predecessors, (779), 779 states have call successors, (779) [2024-11-13 14:04:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12451 states to 12451 states and 13676 transitions. [2024-11-13 14:04:55,920 INFO L78 Accepts]: Start accepts. Automaton has 12451 states and 13676 transitions. Word has length 296 [2024-11-13 14:04:55,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:55,920 INFO L471 AbstractCegarLoop]: Abstraction has 12451 states and 13676 transitions. [2024-11-13 14:04:55,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-13 14:04:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 12451 states and 13676 transitions. [2024-11-13 14:04:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-13 14:04:55,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:55,923 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:55,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-13 14:04:56,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-13 14:04:56,123 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:56,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:56,123 INFO L85 PathProgramCache]: Analyzing trace with hash -2080378838, now seen corresponding path program 14 times [2024-11-13 14:04:56,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:56,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676419517] [2024-11-13 14:04:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:56,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:04:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:04:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:04:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:04:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 14:04:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-13 14:04:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-13 14:04:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-13 14:04:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-13 14:04:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:56,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 736 proven. 460 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-13 14:04:56,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:56,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676419517] [2024-11-13 14:04:56,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676419517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:56,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325001871] [2024-11-13 14:04:56,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:04:56,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:56,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:56,442 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:56,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-13 14:04:56,550 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:04:56,550 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:56,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:04:56,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1024 proven. 332 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-13 14:04:56,907 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:57,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 694 proven. 502 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-13 14:04:57,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325001871] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:57,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:57,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2024-11-13 14:04:57,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742805759] [2024-11-13 14:04:57,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:57,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:04:57,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:57,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:04:57,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:04:57,211 INFO L87 Difference]: Start difference. First operand 12451 states and 13676 transitions. Second operand has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-13 14:04:58,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:58,026 INFO L93 Difference]: Finished difference Result 14220 states and 15599 transitions. [2024-11-13 14:04:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:04:58,026 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 296 [2024-11-13 14:04:58,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:58,042 INFO L225 Difference]: With dead ends: 14220 [2024-11-13 14:04:58,042 INFO L226 Difference]: Without dead ends: 12941 [2024-11-13 14:04:58,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 611 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:04:58,046 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 19 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:58,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 221 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:04:58,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12941 states. [2024-11-13 14:04:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12941 to 12428. [2024-11-13 14:04:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12428 states, 11645 states have (on average 1.038643194504079) internal successors, (12095), 11647 states have internal predecessors, (12095), 778 states have call successors, (778), 2 states have call predecessors, (778), 2 states have return successors, (778), 778 states have call predecessors, (778), 778 states have call successors, (778) [2024-11-13 14:04:58,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12428 states to 12428 states and 13651 transitions. [2024-11-13 14:04:58,871 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 13651 transitions. Word has length 296 [2024-11-13 14:04:58,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:58,872 INFO L471 AbstractCegarLoop]: Abstraction has 12428 states and 13651 transitions. [2024-11-13 14:04:58,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-13 14:04:58,872 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 13651 transitions. [2024-11-13 14:04:58,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-13 14:04:58,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:58,876 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:58,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-13 14:04:59,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-13 14:04:59,077 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:04:59,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:59,077 INFO L85 PathProgramCache]: Analyzing trace with hash -451068123, now seen corresponding path program 15 times [2024-11-13 14:04:59,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:59,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28906922] [2024-11-13 14:04:59,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:59,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:04:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:04:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:04:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:04:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:04:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:04:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:04:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:04:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:04:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:04:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:04:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 14:04:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-13 14:04:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-13 14:04:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-13 14:04:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-13 14:04:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-13 14:04:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 387 proven. 1234 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-13 14:04:59,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:59,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28906922] [2024-11-13 14:04:59,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28906922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:59,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942499672] [2024-11-13 14:04:59,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:04:59,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:59,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:59,687 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:59,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-13 14:04:59,798 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-13 14:04:59,798 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:04:59,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:04:59,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:00,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 0 proven. 1201 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2024-11-13 14:05:00,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:05:00,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942499672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:00,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:05:00,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 28 [2024-11-13 14:05:00,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36768178] [2024-11-13 14:05:00,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:05:00,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 14:05:00,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:00,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 14:05:00,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-11-13 14:05:00,952 INFO L87 Difference]: Start difference. First operand 12428 states and 13651 transitions. Second operand has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-13 14:05:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:04,765 INFO L93 Difference]: Finished difference Result 23132 states and 25508 transitions. [2024-11-13 14:05:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-13 14:05:04,765 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) Word has length 316 [2024-11-13 14:05:04,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:04,786 INFO L225 Difference]: With dead ends: 23132 [2024-11-13 14:05:04,786 INFO L226 Difference]: Without dead ends: 17972 [2024-11-13 14:05:04,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1613 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=664, Invalid=5036, Unknown=0, NotChecked=0, Total=5700 [2024-11-13 14:05:04,794 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 513 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 3978 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 4023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:04,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1758 Invalid, 4023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3978 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 14:05:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17972 states. [2024-11-13 14:05:05,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17972 to 14350. [2024-11-13 14:05:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14350 states, 13447 states have (on average 1.0347289358221166) internal successors, (13914), 13449 states have internal predecessors, (13914), 898 states have call successors, (898), 2 states have call predecessors, (898), 2 states have return successors, (898), 898 states have call predecessors, (898), 898 states have call successors, (898) [2024-11-13 14:05:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14350 states to 14350 states and 15710 transitions. [2024-11-13 14:05:05,772 INFO L78 Accepts]: Start accepts. Automaton has 14350 states and 15710 transitions. Word has length 316 [2024-11-13 14:05:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:05,773 INFO L471 AbstractCegarLoop]: Abstraction has 14350 states and 15710 transitions. [2024-11-13 14:05:05,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-13 14:05:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 14350 states and 15710 transitions. [2024-11-13 14:05:05,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-13 14:05:05,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:05,777 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:05,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-13 14:05:05,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:05,982 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:05:05,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:05,982 INFO L85 PathProgramCache]: Analyzing trace with hash -680003345, now seen corresponding path program 16 times [2024-11-13 14:05:05,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:05,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052968203] [2024-11-13 14:05:05,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:05,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:05:06,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819163941] [2024-11-13 14:05:06,024 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 14:05:06,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:06,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:06,026 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:06,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-13 14:05:06,203 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 14:05:06,204 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:05:06,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-13 14:05:06,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2005 backedges. 63 proven. 1530 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-13 14:05:10,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:05:10,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:10,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052968203] [2024-11-13 14:05:10,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:05:10,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819163941] [2024-11-13 14:05:10,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819163941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:10,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:10,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2024-11-13 14:05:10,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787130048] [2024-11-13 14:05:10,584 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:05:10,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 14:05:10,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:10,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 14:05:10,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2024-11-13 14:05:10,585 INFO L87 Difference]: Start difference. First operand 14350 states and 15710 transitions. Second operand has 28 states, 27 states have (on average 7.222222222222222) internal successors, (195), 28 states have internal predecessors, (195), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-13 14:05:17,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:17,125 INFO L93 Difference]: Finished difference Result 14805 states and 16205 transitions. [2024-11-13 14:05:17,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-13 14:05:17,125 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 7.222222222222222) internal successors, (195), 28 states have internal predecessors, (195), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 316 [2024-11-13 14:05:17,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:17,143 INFO L225 Difference]: With dead ends: 14805 [2024-11-13 14:05:17,143 INFO L226 Difference]: Without dead ends: 14580 [2024-11-13 14:05:17,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=385, Invalid=2371, Unknown=0, NotChecked=0, Total=2756 [2024-11-13 14:05:17,149 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 163 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:17,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 681 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 14:05:17,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14580 states. [2024-11-13 14:05:18,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14580 to 14350. [2024-11-13 14:05:18,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14350 states, 13447 states have (on average 1.034580203762921) internal successors, (13912), 13449 states have internal predecessors, (13912), 898 states have call successors, (898), 2 states have call predecessors, (898), 2 states have return successors, (898), 898 states have call predecessors, (898), 898 states have call successors, (898) [2024-11-13 14:05:18,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14350 states to 14350 states and 15708 transitions. [2024-11-13 14:05:18,144 INFO L78 Accepts]: Start accepts. Automaton has 14350 states and 15708 transitions. Word has length 316 [2024-11-13 14:05:18,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:18,144 INFO L471 AbstractCegarLoop]: Abstraction has 14350 states and 15708 transitions. [2024-11-13 14:05:18,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 7.222222222222222) internal successors, (195), 28 states have internal predecessors, (195), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-13 14:05:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 14350 states and 15708 transitions. [2024-11-13 14:05:18,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-13 14:05:18,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:18,148 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:18,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-13 14:05:18,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:18,353 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:05:18,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:18,354 INFO L85 PathProgramCache]: Analyzing trace with hash 160085379, now seen corresponding path program 17 times [2024-11-13 14:05:18,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:18,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46571203] [2024-11-13 14:05:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:18,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:05:18,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137452996] [2024-11-13 14:05:18,396 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 14:05:18,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:18,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:18,398 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:18,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-13 14:05:18,565 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-11-13 14:05:18,565 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:05:18,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-13 14:05:18,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 72 proven. 1561 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-13 14:05:20,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:05:21,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:21,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46571203] [2024-11-13 14:05:21,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:05:21,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137452996] [2024-11-13 14:05:21,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137452996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:21,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:21,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2024-11-13 14:05:21,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45623773] [2024-11-13 14:05:21,216 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:05:21,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-13 14:05:21,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:21,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-13 14:05:21,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1331, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 14:05:21,218 INFO L87 Difference]: Start difference. First operand 14350 states and 15708 transitions. Second operand has 38 states, 37 states have (on average 6.0) internal successors, (222), 38 states have internal predecessors, (222), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-13 14:05:23,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:23,896 INFO L93 Difference]: Finished difference Result 14935 states and 16328 transitions. [2024-11-13 14:05:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-13 14:05:23,897 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.0) internal successors, (222), 38 states have internal predecessors, (222), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) Word has length 316 [2024-11-13 14:05:23,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:23,920 INFO L225 Difference]: With dead ends: 14935 [2024-11-13 14:05:23,921 INFO L226 Difference]: Without dead ends: 14934 [2024-11-13 14:05:23,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=732, Invalid=3690, Unknown=0, NotChecked=0, Total=4422 [2024-11-13 14:05:23,927 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 92 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:23,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 415 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:05:23,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14934 states. [2024-11-13 14:05:24,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14934 to 14350. [2024-11-13 14:05:24,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14350 states, 13447 states have (on average 1.0345058377333234) internal successors, (13911), 13449 states have internal predecessors, (13911), 898 states have call successors, (898), 2 states have call predecessors, (898), 2 states have return successors, (898), 898 states have call predecessors, (898), 898 states have call successors, (898) [2024-11-13 14:05:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14350 states to 14350 states and 15707 transitions. [2024-11-13 14:05:24,895 INFO L78 Accepts]: Start accepts. Automaton has 14350 states and 15707 transitions. Word has length 316 [2024-11-13 14:05:24,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:24,896 INFO L471 AbstractCegarLoop]: Abstraction has 14350 states and 15707 transitions. [2024-11-13 14:05:24,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.0) internal successors, (222), 38 states have internal predecessors, (222), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-13 14:05:24,896 INFO L276 IsEmpty]: Start isEmpty. Operand 14350 states and 15707 transitions. [2024-11-13 14:05:24,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-13 14:05:24,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:24,900 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:24,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-13 14:05:25,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:25,100 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:05:25,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:25,101 INFO L85 PathProgramCache]: Analyzing trace with hash -628565196, now seen corresponding path program 18 times [2024-11-13 14:05:25,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:25,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248618083] [2024-11-13 14:05:25,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:25,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:05:25,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186267413] [2024-11-13 14:05:25,155 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 14:05:25,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:25,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:25,160 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:25,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-13 14:05:25,469 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2024-11-13 14:05:25,469 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:05:25,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 14:05:25,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2340 backedges. 0 proven. 1436 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2024-11-13 14:05:26,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:05:26,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:26,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248618083] [2024-11-13 14:05:26,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:05:26,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186267413] [2024-11-13 14:05:26,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186267413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:26,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:26,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-13 14:05:26,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192724378] [2024-11-13 14:05:26,671 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:05:26,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:05:26,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:05:26,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:05:26,672 INFO L87 Difference]: Start difference. First operand 14350 states and 15707 transitions. Second operand has 13 states, 12 states have (on average 12.666666666666666) internal successors, (152), 13 states have internal predecessors, (152), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:05:27,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:27,971 INFO L93 Difference]: Finished difference Result 14961 states and 16378 transitions. [2024-11-13 14:05:27,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:05:27,972 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.666666666666666) internal successors, (152), 13 states have internal predecessors, (152), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 336 [2024-11-13 14:05:27,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:27,992 INFO L225 Difference]: With dead ends: 14961 [2024-11-13 14:05:27,992 INFO L226 Difference]: Without dead ends: 14960 [2024-11-13 14:05:27,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:05:27,996 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 19 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:27,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 643 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:05:28,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14960 states. [2024-11-13 14:05:28,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14960 to 14462. [2024-11-13 14:05:28,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14462 states, 13552 states have (on average 1.0342384887839433) internal successors, (14016), 13554 states have internal predecessors, (14016), 905 states have call successors, (905), 2 states have call predecessors, (905), 2 states have return successors, (905), 905 states have call predecessors, (905), 905 states have call successors, (905) [2024-11-13 14:05:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14462 states to 14462 states and 15826 transitions. [2024-11-13 14:05:28,871 INFO L78 Accepts]: Start accepts. Automaton has 14462 states and 15826 transitions. Word has length 336 [2024-11-13 14:05:28,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:28,871 INFO L471 AbstractCegarLoop]: Abstraction has 14462 states and 15826 transitions. [2024-11-13 14:05:28,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.666666666666666) internal successors, (152), 13 states have internal predecessors, (152), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:05:28,871 INFO L276 IsEmpty]: Start isEmpty. Operand 14462 states and 15826 transitions. [2024-11-13 14:05:28,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-13 14:05:28,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:28,877 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:28,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-13 14:05:29,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:29,077 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:05:29,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:29,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1548202296, now seen corresponding path program 19 times [2024-11-13 14:05:29,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:29,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186590813] [2024-11-13 14:05:29,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:29,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:05:29,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465862049] [2024-11-13 14:05:29,126 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-13 14:05:29,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:29,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:29,129 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:29,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-13 14:05:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:29,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-11-13 14:05:29,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2260 backedges. 90 proven. 1803 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-13 14:05:31,550 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:05:32,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:32,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186590813] [2024-11-13 14:05:32,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:05:32,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465862049] [2024-11-13 14:05:32,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465862049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:32,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:32,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2024-11-13 14:05:32,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286582207] [2024-11-13 14:05:32,234 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:05:32,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-13 14:05:32,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:32,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-13 14:05:32,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1688, Unknown=0, NotChecked=0, Total=1806 [2024-11-13 14:05:32,236 INFO L87 Difference]: Start difference. First operand 14462 states and 15826 transitions. Second operand has 40 states, 39 states have (on average 6.538461538461538) internal successors, (255), 40 states have internal predecessors, (255), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-13 14:05:37,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:37,014 INFO L93 Difference]: Finished difference Result 14949 states and 16341 transitions. [2024-11-13 14:05:37,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-13 14:05:37,015 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 6.538461538461538) internal successors, (255), 40 states have internal predecessors, (255), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 336 [2024-11-13 14:05:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:37,032 INFO L225 Difference]: With dead ends: 14949 [2024-11-13 14:05:37,032 INFO L226 Difference]: Without dead ends: 14704 [2024-11-13 14:05:37,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=292, Invalid=4130, Unknown=0, NotChecked=0, Total=4422 [2024-11-13 14:05:37,039 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 146 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 8439 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 8456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 8439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:37,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1639 Invalid, 8456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 8439 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 14:05:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14704 states. [2024-11-13 14:05:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14704 to 14462. [2024-11-13 14:05:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14462 states, 13552 states have (on average 1.0340171192443919) internal successors, (14013), 13554 states have internal predecessors, (14013), 905 states have call successors, (905), 2 states have call predecessors, (905), 2 states have return successors, (905), 905 states have call predecessors, (905), 905 states have call successors, (905) [2024-11-13 14:05:37,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14462 states to 14462 states and 15823 transitions. [2024-11-13 14:05:37,832 INFO L78 Accepts]: Start accepts. Automaton has 14462 states and 15823 transitions. Word has length 336 [2024-11-13 14:05:37,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:37,833 INFO L471 AbstractCegarLoop]: Abstraction has 14462 states and 15823 transitions. [2024-11-13 14:05:37,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 6.538461538461538) internal successors, (255), 40 states have internal predecessors, (255), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-13 14:05:37,833 INFO L276 IsEmpty]: Start isEmpty. Operand 14462 states and 15823 transitions. [2024-11-13 14:05:37,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-13 14:05:37,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:37,836 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:37,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-13 14:05:38,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-13 14:05:38,036 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:05:38,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:38,037 INFO L85 PathProgramCache]: Analyzing trace with hash 34289136, now seen corresponding path program 20 times [2024-11-13 14:05:38,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:38,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874169444] [2024-11-13 14:05:38,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:38,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:05:38,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147929984] [2024-11-13 14:05:38,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:05:38,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:38,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:38,074 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:38,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-13 14:05:38,182 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:05:38,182 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:05:38,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 14:05:38,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:38,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2196 backedges. 0 proven. 1628 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-11-13 14:05:38,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:05:48,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:48,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874169444] [2024-11-13 14:05:48,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:05:48,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147929984] [2024-11-13 14:05:48,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147929984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:48,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:05:48,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-13 14:05:48,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667691783] [2024-11-13 14:05:48,365 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:05:48,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:05:48,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:48,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:05:48,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=375, Unknown=2, NotChecked=0, Total=506 [2024-11-13 14:05:48,366 INFO L87 Difference]: Start difference. First operand 14462 states and 15823 transitions. Second operand has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 13 states have internal predecessors, (182), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:05:50,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:50,489 INFO L93 Difference]: Finished difference Result 16639 states and 18135 transitions. [2024-11-13 14:05:50,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:05:50,489 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 13 states have internal predecessors, (182), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 336 [2024-11-13 14:05:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:50,520 INFO L225 Difference]: With dead ends: 16639 [2024-11-13 14:05:50,520 INFO L226 Difference]: Without dead ends: 16638 [2024-11-13 14:05:50,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=129, Invalid=375, Unknown=2, NotChecked=0, Total=506 [2024-11-13 14:05:50,524 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 25 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:50,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 1129 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:05:50,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16638 states. [2024-11-13 14:05:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16638 to 14462. [2024-11-13 14:05:51,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14462 states, 13552 states have (on average 1.0339433293978748) internal successors, (14012), 13554 states have internal predecessors, (14012), 905 states have call successors, (905), 2 states have call predecessors, (905), 2 states have return successors, (905), 905 states have call predecessors, (905), 905 states have call successors, (905) [2024-11-13 14:05:51,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14462 states to 14462 states and 15822 transitions. [2024-11-13 14:05:51,541 INFO L78 Accepts]: Start accepts. Automaton has 14462 states and 15822 transitions. Word has length 336 [2024-11-13 14:05:51,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:51,542 INFO L471 AbstractCegarLoop]: Abstraction has 14462 states and 15822 transitions. [2024-11-13 14:05:51,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 13 states have internal predecessors, (182), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-13 14:05:51,542 INFO L276 IsEmpty]: Start isEmpty. Operand 14462 states and 15822 transitions. [2024-11-13 14:05:51,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-13 14:05:51,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:51,546 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:05:51,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-13 14:05:51,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-13 14:05:51,746 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:05:51,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:51,747 INFO L85 PathProgramCache]: Analyzing trace with hash 342467267, now seen corresponding path program 21 times [2024-11-13 14:05:51,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:51,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58420820] [2024-11-13 14:05:51,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:51,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:05:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:05:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:05:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:05:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:05:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:05:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:05:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:05:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:05:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:05:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:05:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 14:05:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-13 14:05:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-13 14:05:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-13 14:05:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-13 14:05:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-13 14:05:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-13 14:05:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-13 14:05:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:52,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2655 backedges. 503 proven. 1604 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-13 14:05:52,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:52,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58420820] [2024-11-13 14:05:52,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58420820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:52,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242793081] [2024-11-13 14:05:52,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:05:52,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:52,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:52,574 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:52,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-13 14:05:52,755 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-13 14:05:52,755 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:05:52,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 14:05:52,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:53,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2655 backedges. 0 proven. 1563 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2024-11-13 14:05:53,785 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:05:54,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242793081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:54,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:05:54,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12] total 31 [2024-11-13 14:05:54,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321388277] [2024-11-13 14:05:54,423 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:05:54,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-13 14:05:54,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:54,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-13 14:05:54,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:05:54,425 INFO L87 Difference]: Start difference. First operand 14462 states and 15822 transitions. Second operand has 31 states, 31 states have (on average 13.258064516129032) internal successors, (411), 31 states have internal predecessors, (411), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-13 14:06:00,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:00,085 INFO L93 Difference]: Finished difference Result 25380 states and 27883 transitions. [2024-11-13 14:06:00,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-13 14:06:00,085 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 13.258064516129032) internal successors, (411), 31 states have internal predecessors, (411), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) Word has length 356 [2024-11-13 14:06:00,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:00,113 INFO L225 Difference]: With dead ends: 25380 [2024-11-13 14:06:00,113 INFO L226 Difference]: Without dead ends: 20038 [2024-11-13 14:06:00,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2056 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=809, Invalid=6331, Unknown=0, NotChecked=0, Total=7140 [2024-11-13 14:06:00,125 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 485 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 4682 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 4725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 4682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:00,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 2006 Invalid, 4725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 4682 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 14:06:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20038 states. [2024-11-13 14:06:01,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20038 to 16672. [2024-11-13 14:06:01,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16672 states, 15624 states have (on average 1.0305299539170507) internal successors, (16101), 15626 states have internal predecessors, (16101), 1043 states have call successors, (1043), 2 states have call predecessors, (1043), 2 states have return successors, (1043), 1043 states have call predecessors, (1043), 1043 states have call successors, (1043) [2024-11-13 14:06:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16672 states to 16672 states and 18187 transitions. [2024-11-13 14:06:01,504 INFO L78 Accepts]: Start accepts. Automaton has 16672 states and 18187 transitions. Word has length 356 [2024-11-13 14:06:01,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:01,504 INFO L471 AbstractCegarLoop]: Abstraction has 16672 states and 18187 transitions. [2024-11-13 14:06:01,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 13.258064516129032) internal successors, (411), 31 states have internal predecessors, (411), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-13 14:06:01,505 INFO L276 IsEmpty]: Start isEmpty. Operand 16672 states and 18187 transitions. [2024-11-13 14:06:01,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-13 14:06:01,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:01,509 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:01,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-13 14:06:01,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-13 14:06:01,709 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:06:01,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1496138706, now seen corresponding path program 22 times [2024-11-13 14:06:01,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:01,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758385901] [2024-11-13 14:06:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:01,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:06:01,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [840589662] [2024-11-13 14:06:01,742 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 14:06:01,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:01,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:06:01,744 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:06:01,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-13 14:06:01,890 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 14:06:01,890 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:06:01,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:06:01,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:06:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2990 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-13 14:06:02,838 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:06:03,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:03,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758385901] [2024-11-13 14:06:03,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:06:03,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840589662] [2024-11-13 14:06:03,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840589662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:06:03,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:06:03,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-13 14:06:03,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590492203] [2024-11-13 14:06:03,256 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:06:03,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:06:03,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:03,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:06:03,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:06:03,258 INFO L87 Difference]: Start difference. First operand 16672 states and 18187 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 14 states have internal predecessors, (167), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-13 14:06:04,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:04,747 INFO L93 Difference]: Finished difference Result 17283 states and 18856 transitions. [2024-11-13 14:06:04,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:06:04,747 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 14 states have internal predecessors, (167), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 376 [2024-11-13 14:06:04,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:04,767 INFO L225 Difference]: With dead ends: 17283 [2024-11-13 14:06:04,767 INFO L226 Difference]: Without dead ends: 17282 [2024-11-13 14:06:04,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:06:04,772 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 19 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:04,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 756 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:06:04,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17282 states. [2024-11-13 14:06:05,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17282 to 16800. [2024-11-13 14:06:05,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16800 states, 15744 states have (on average 1.030297256097561) internal successors, (16221), 15746 states have internal predecessors, (16221), 1051 states have call successors, (1051), 2 states have call predecessors, (1051), 2 states have return successors, (1051), 1051 states have call predecessors, (1051), 1051 states have call successors, (1051) [2024-11-13 14:06:05,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16800 states to 16800 states and 18323 transitions. [2024-11-13 14:06:05,629 INFO L78 Accepts]: Start accepts. Automaton has 16800 states and 18323 transitions. Word has length 376 [2024-11-13 14:06:05,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:05,629 INFO L471 AbstractCegarLoop]: Abstraction has 16800 states and 18323 transitions. [2024-11-13 14:06:05,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 14 states have internal predecessors, (167), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-13 14:06:05,629 INFO L276 IsEmpty]: Start isEmpty. Operand 16800 states and 18323 transitions. [2024-11-13 14:06:05,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-13 14:06:05,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:05,633 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:05,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-13 14:06:05,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-13 14:06:05,834 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:06:05,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:05,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2019642212, now seen corresponding path program 23 times [2024-11-13 14:06:05,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:05,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560526030] [2024-11-13 14:06:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:05,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:06:05,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779685168] [2024-11-13 14:06:05,877 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 14:06:05,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:05,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:06:05,879 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:06:05,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-13 14:06:06,048 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-13 14:06:06,048 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:06:06,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:06:06,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:06:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2938 backedges. 0 proven. 1882 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2024-11-13 14:06:06,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:06:11,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:11,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560526030] [2024-11-13 14:06:11,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:06:11,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779685168] [2024-11-13 14:06:11,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779685168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:06:11,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:06:11,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 14:06:11,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141377487] [2024-11-13 14:06:11,556 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:06:11,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:06:11,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:11,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:06:11,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=179, Unknown=1, NotChecked=0, Total=240 [2024-11-13 14:06:11,557 INFO L87 Difference]: Start difference. First operand 16800 states and 18323 transitions. Second operand has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:06:12,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:12,911 INFO L93 Difference]: Finished difference Result 18136 states and 19767 transitions. [2024-11-13 14:06:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:06:12,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 376 [2024-11-13 14:06:12,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:12,934 INFO L225 Difference]: With dead ends: 18136 [2024-11-13 14:06:12,934 INFO L226 Difference]: Without dead ends: 18135 [2024-11-13 14:06:12,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=60, Invalid=179, Unknown=1, NotChecked=0, Total=240 [2024-11-13 14:06:12,938 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 20 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:12,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 322 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:06:12,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18135 states. [2024-11-13 14:06:14,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18135 to 16996. [2024-11-13 14:06:14,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16996 states, 15929 states have (on average 1.03057316843493) internal successors, (16416), 15931 states have internal predecessors, (16416), 1062 states have call successors, (1062), 2 states have call predecessors, (1062), 2 states have return successors, (1062), 1062 states have call predecessors, (1062), 1062 states have call successors, (1062) [2024-11-13 14:06:14,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16996 states to 16996 states and 18540 transitions. [2024-11-13 14:06:14,186 INFO L78 Accepts]: Start accepts. Automaton has 16996 states and 18540 transitions. Word has length 376 [2024-11-13 14:06:14,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:14,187 INFO L471 AbstractCegarLoop]: Abstraction has 16996 states and 18540 transitions. [2024-11-13 14:06:14,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-13 14:06:14,187 INFO L276 IsEmpty]: Start isEmpty. Operand 16996 states and 18540 transitions. [2024-11-13 14:06:14,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-13 14:06:14,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:14,192 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:14,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-13 14:06:14,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-13 14:06:14,393 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:06:14,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:14,393 INFO L85 PathProgramCache]: Analyzing trace with hash -31095046, now seen corresponding path program 24 times [2024-11-13 14:06:14,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:14,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139006571] [2024-11-13 14:06:14,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:14,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:06:14,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690477767] [2024-11-13 14:06:14,441 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 14:06:14,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:14,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:06:14,445 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:06:14,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-13 14:06:14,517 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-13 14:06:14,517 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:06:14,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:06:14,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:06:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 163 proven. 669 refuted. 0 times theorem prover too weak. 1998 trivial. 0 not checked. [2024-11-13 14:06:14,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:06:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139006571] [2024-11-13 14:06:15,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:06:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690477767] [2024-11-13 14:06:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690477767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:06:15,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:06:15,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 14:06:15,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112594037] [2024-11-13 14:06:15,479 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:06:15,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:06:15,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:15,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:06:15,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:06:15,480 INFO L87 Difference]: Start difference. First operand 16996 states and 18540 transitions. Second operand has 9 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 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 14:06:16,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:16,646 INFO L93 Difference]: Finished difference Result 17258 states and 18815 transitions. [2024-11-13 14:06:16,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:06:16,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 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 376 [2024-11-13 14:06:16,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:16,669 INFO L225 Difference]: With dead ends: 17258 [2024-11-13 14:06:16,669 INFO L226 Difference]: Without dead ends: 16130 [2024-11-13 14:06:16,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:06:16,675 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 58 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:16,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 312 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:06:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16130 states. [2024-11-13 14:06:17,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16130 to 16130. [2024-11-13 14:06:17,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16130 states, 15117 states have (on average 1.0300985645299994) internal successors, (15572), 15119 states have internal predecessors, (15572), 1008 states have call successors, (1008), 2 states have call predecessors, (1008), 2 states have return successors, (1008), 1008 states have call predecessors, (1008), 1008 states have call successors, (1008) [2024-11-13 14:06:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16130 states to 16130 states and 17588 transitions. [2024-11-13 14:06:17,752 INFO L78 Accepts]: Start accepts. Automaton has 16130 states and 17588 transitions. Word has length 376 [2024-11-13 14:06:17,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:17,753 INFO L471 AbstractCegarLoop]: Abstraction has 16130 states and 17588 transitions. [2024-11-13 14:06:17,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 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 14:06:17,753 INFO L276 IsEmpty]: Start isEmpty. Operand 16130 states and 17588 transitions. [2024-11-13 14:06:17,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-13 14:06:17,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:17,756 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:17,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-13 14:06:17,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-13 14:06:17,957 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:06:17,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:17,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2020071768, now seen corresponding path program 25 times [2024-11-13 14:06:17,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:17,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476015113] [2024-11-13 14:06:17,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:17,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:06:17,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123794337] [2024-11-13 14:06:17,984 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-13 14:06:17,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:17,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:06:17,987 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:06:17,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-13 14:06:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:18,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:06:18,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:06:19,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2794 backedges. 0 proven. 2082 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-11-13 14:06:19,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:06:19,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:19,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476015113] [2024-11-13 14:06:19,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:06:19,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123794337] [2024-11-13 14:06:19,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123794337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:06:19,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:06:19,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-13 14:06:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112274586] [2024-11-13 14:06:19,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:06:19,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:06:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:19,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:06:19,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:06:19,471 INFO L87 Difference]: Start difference. First operand 16130 states and 17588 transitions. Second operand has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-13 14:06:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:21,346 INFO L93 Difference]: Finished difference Result 18579 states and 20189 transitions. [2024-11-13 14:06:21,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:06:21,346 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 376 [2024-11-13 14:06:21,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:21,370 INFO L225 Difference]: With dead ends: 18579 [2024-11-13 14:06:21,370 INFO L226 Difference]: Without dead ends: 18578 [2024-11-13 14:06:21,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:06:21,374 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 31 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:21,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 288 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:06:21,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18578 states. [2024-11-13 14:06:22,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18578 to 16130. [2024-11-13 14:06:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16130 states, 15117 states have (on average 1.0300324138387247) internal successors, (15571), 15119 states have internal predecessors, (15571), 1008 states have call successors, (1008), 2 states have call predecessors, (1008), 2 states have return successors, (1008), 1008 states have call predecessors, (1008), 1008 states have call successors, (1008) [2024-11-13 14:06:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16130 states to 16130 states and 17587 transitions. [2024-11-13 14:06:22,345 INFO L78 Accepts]: Start accepts. Automaton has 16130 states and 17587 transitions. Word has length 376 [2024-11-13 14:06:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:22,346 INFO L471 AbstractCegarLoop]: Abstraction has 16130 states and 17587 transitions. [2024-11-13 14:06:22,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-13 14:06:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 16130 states and 17587 transitions. [2024-11-13 14:06:22,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-11-13 14:06:22,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:22,350 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:22,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-13 14:06:22,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:22,551 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:06:22,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:22,551 INFO L85 PathProgramCache]: Analyzing trace with hash 610830162, now seen corresponding path program 3 times [2024-11-13 14:06:22,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:22,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068428443] [2024-11-13 14:06:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:22,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:06:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:06:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:06:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:06:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:06:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:06:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:06:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:06:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:06:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:06:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:06:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 14:06:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-13 14:06:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-13 14:06:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-13 14:06:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-13 14:06:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-13 14:06:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-13 14:06:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-13 14:06:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-13 14:06:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-13 14:06:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3334 backedges. 0 proven. 2646 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-13 14:06:23,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:23,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068428443] [2024-11-13 14:06:23,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068428443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:06:23,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485407084] [2024-11-13 14:06:23,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:06:23,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:23,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:06:23,247 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:06:23,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-13 14:06:23,447 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-13 14:06:23,447 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:06:23,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:06:23,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:06:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3334 backedges. 0 proven. 2646 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-13 14:06:24,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:06:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3334 backedges. 0 proven. 2646 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-13 14:06:25,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485407084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:06:25,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:06:25,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 40 [2024-11-13 14:06:25,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030587333] [2024-11-13 14:06:25,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:06:25,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-13 14:06:25,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:25,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-13 14:06:25,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 14:06:25,192 INFO L87 Difference]: Start difference. First operand 16130 states and 17587 transitions. Second operand has 41 states, 40 states have (on average 14.6) internal successors, (584), 41 states have internal predecessors, (584), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-13 14:06:27,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:27,199 INFO L93 Difference]: Finished difference Result 23171 states and 25927 transitions. [2024-11-13 14:06:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-13 14:06:27,199 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 14.6) internal successors, (584), 41 states have internal predecessors, (584), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) Word has length 388 [2024-11-13 14:06:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:27,224 INFO L225 Difference]: With dead ends: 23171 [2024-11-13 14:06:27,224 INFO L226 Difference]: Without dead ends: 23170 [2024-11-13 14:06:27,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 797 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 14:06:27,230 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:27,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 319 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:06:27,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23170 states. [2024-11-13 14:06:28,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23170 to 23170. [2024-11-13 14:06:28,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23170 states, 21717 states have (on average 1.0402449693788276) internal successors, (22591), 21719 states have internal predecessors, (22591), 1448 states have call successors, (1448), 2 states have call predecessors, (1448), 2 states have return successors, (1448), 1448 states have call predecessors, (1448), 1448 states have call successors, (1448) [2024-11-13 14:06:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23170 states to 23170 states and 25487 transitions. [2024-11-13 14:06:28,897 INFO L78 Accepts]: Start accepts. Automaton has 23170 states and 25487 transitions. Word has length 388 [2024-11-13 14:06:28,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:28,897 INFO L471 AbstractCegarLoop]: Abstraction has 23170 states and 25487 transitions. [2024-11-13 14:06:28,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 14.6) internal successors, (584), 41 states have internal predecessors, (584), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-13 14:06:28,897 INFO L276 IsEmpty]: Start isEmpty. Operand 23170 states and 25487 transitions. [2024-11-13 14:06:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-13 14:06:28,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:28,900 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:28,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-13 14:06:29,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-13 14:06:29,101 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:06:29,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:29,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1783601600, now seen corresponding path program 3 times [2024-11-13 14:06:29,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:29,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566708967] [2024-11-13 14:06:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:29,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:06:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:06:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:06:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:06:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:06:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:06:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:06:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:06:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:06:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:06:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:06:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 14:06:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-13 14:06:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-13 14:06:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-13 14:06:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-13 14:06:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-13 14:06:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-13 14:06:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-13 14:06:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-13 14:06:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-13 14:06:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-13 14:06:29,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:29,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566708967] [2024-11-13 14:06:29,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566708967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:06:29,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312301757] [2024-11-13 14:06:29,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:06:29,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:29,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:06:29,854 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:06:29,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-13 14:06:30,012 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-13 14:06:30,012 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:06:30,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:06:30,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:06:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-13 14:06:30,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:06:31,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-13 14:06:31,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312301757] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:06:31,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:06:31,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 40 [2024-11-13 14:06:31,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005946308] [2024-11-13 14:06:31,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:06:31,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-13 14:06:31,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:31,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-13 14:06:31,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 14:06:31,241 INFO L87 Difference]: Start difference. First operand 23170 states and 25487 transitions. Second operand has 41 states, 40 states have (on average 14.75) internal successors, (590), 41 states have internal predecessors, (590), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-13 14:06:40,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:40,018 INFO L93 Difference]: Finished difference Result 68096 states and 74260 transitions. [2024-11-13 14:06:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-13 14:06:40,019 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 14.75) internal successors, (590), 41 states have internal predecessors, (590), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) Word has length 391 [2024-11-13 14:06:40,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:40,086 INFO L225 Difference]: With dead ends: 68096 [2024-11-13 14:06:40,086 INFO L226 Difference]: Without dead ends: 68095 [2024-11-13 14:06:40,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 14:06:40,096 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 614 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:40,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 609 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:06:40,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68095 states. [2024-11-13 14:06:42,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68095 to 46190. [2024-11-13 14:06:42,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46190 states, 43297 states have (on average 1.040510889899993) internal successors, (45051), 43299 states have internal predecessors, (45051), 2888 states have call successors, (2888), 2 states have call predecessors, (2888), 2 states have return successors, (2888), 2888 states have call predecessors, (2888), 2888 states have call successors, (2888) [2024-11-13 14:06:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46190 states to 46190 states and 50827 transitions. [2024-11-13 14:06:42,886 INFO L78 Accepts]: Start accepts. Automaton has 46190 states and 50827 transitions. Word has length 391 [2024-11-13 14:06:42,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:42,886 INFO L471 AbstractCegarLoop]: Abstraction has 46190 states and 50827 transitions. [2024-11-13 14:06:42,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 14.75) internal successors, (590), 41 states have internal predecessors, (590), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-13 14:06:42,886 INFO L276 IsEmpty]: Start isEmpty. Operand 46190 states and 50827 transitions. [2024-11-13 14:06:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-13 14:06:42,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:42,890 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:42,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-13 14:06:43,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-13 14:06:43,090 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:06:43,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:43,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1106448481, now seen corresponding path program 26 times [2024-11-13 14:06:43,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:43,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968758225] [2024-11-13 14:06:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:43,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:06:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:06:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:06:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:06:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:06:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:06:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:06:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:06:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:06:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:06:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:06:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 14:06:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-13 14:06:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-13 14:06:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-13 14:06:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-13 14:06:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-13 14:06:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-13 14:06:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-13 14:06:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-13 14:06:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-13 14:06:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:06:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3345 backedges. 635 proven. 2022 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-13 14:06:43,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:43,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968758225] [2024-11-13 14:06:43,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968758225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:06:43,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033089532] [2024-11-13 14:06:43,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:06:43,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:43,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:06:43,891 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:06:43,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-13 14:06:44,010 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:06:44,010 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:06:44,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:06:44,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:06:45,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3345 backedges. 745 proven. 1912 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-13 14:06:45,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:06:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3345 backedges. 745 proven. 1912 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-13 14:06:46,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033089532] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:06:46,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:06:46,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 33 [2024-11-13 14:06:46,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253925363] [2024-11-13 14:06:46,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:06:46,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 14:06:46,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:46,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 14:06:46,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:06:46,008 INFO L87 Difference]: Start difference. First operand 46190 states and 50827 transitions. Second operand has 33 states, 33 states have (on average 13.969696969696969) internal successors, (461), 33 states have internal predecessors, (461), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-13 14:06:52,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:06:52,874 INFO L93 Difference]: Finished difference Result 92312 states and 102198 transitions. [2024-11-13 14:06:52,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:06:52,874 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 13.969696969696969) internal successors, (461), 33 states have internal predecessors, (461), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 396 [2024-11-13 14:06:52,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:06:52,973 INFO L225 Difference]: With dead ends: 92312 [2024-11-13 14:06:52,973 INFO L226 Difference]: Without dead ends: 69252 [2024-11-13 14:06:52,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 804 SyntacticMatches, 19 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=409, Invalid=1313, Unknown=0, NotChecked=0, Total=1722 [2024-11-13 14:06:52,996 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 32 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:06:52,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1167 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 14:06:53,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69252 states. [2024-11-13 14:06:57,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69252 to 51527. [2024-11-13 14:06:57,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51527 states, 48301 states have (on average 1.037059274135111) internal successors, (50091), 48303 states have internal predecessors, (50091), 3221 states have call successors, (3221), 2 states have call predecessors, (3221), 2 states have return successors, (3221), 3221 states have call predecessors, (3221), 3221 states have call successors, (3221) [2024-11-13 14:06:57,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51527 states to 51527 states and 56533 transitions. [2024-11-13 14:06:57,849 INFO L78 Accepts]: Start accepts. Automaton has 51527 states and 56533 transitions. Word has length 396 [2024-11-13 14:06:57,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:06:57,849 INFO L471 AbstractCegarLoop]: Abstraction has 51527 states and 56533 transitions. [2024-11-13 14:06:57,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 13.969696969696969) internal successors, (461), 33 states have internal predecessors, (461), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-13 14:06:57,850 INFO L276 IsEmpty]: Start isEmpty. Operand 51527 states and 56533 transitions. [2024-11-13 14:06:57,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-13 14:06:57,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:06:57,858 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:06:57,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-13 14:06:58,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-13 14:06:58,058 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:06:58,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:06:58,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1327871600, now seen corresponding path program 27 times [2024-11-13 14:06:58,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:06:58,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819729944] [2024-11-13 14:06:58,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:06:58,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:06:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:06:58,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332715918] [2024-11-13 14:06:58,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:06:58,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:06:58,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:06:58,128 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:06:58,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-13 14:06:58,259 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-13 14:06:58,259 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:06:58,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 14:06:58,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:06:59,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 2272 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2024-11-13 14:06:59,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:06:59,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:06:59,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819729944] [2024-11-13 14:06:59,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:06:59,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332715918] [2024-11-13 14:06:59,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332715918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:06:59,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:06:59,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-13 14:06:59,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769221751] [2024-11-13 14:06:59,924 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:06:59,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 14:06:59,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:06:59,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 14:06:59,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:06:59,926 INFO L87 Difference]: Start difference. First operand 51527 states and 56533 transitions. Second operand has 15 states, 14 states have (on average 13.0) internal successors, (182), 15 states have internal predecessors, (182), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-13 14:07:06,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:07:06,061 INFO L93 Difference]: Finished difference Result 75974 states and 83712 transitions. [2024-11-13 14:07:06,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-13 14:07:06,062 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 13.0) internal successors, (182), 15 states have internal predecessors, (182), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 416 [2024-11-13 14:07:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:07:06,123 INFO L225 Difference]: With dead ends: 75974 [2024-11-13 14:07:06,123 INFO L226 Difference]: Without dead ends: 52451 [2024-11-13 14:07:06,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=186, Invalid=1296, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 14:07:06,150 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 168 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:07:06,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1439 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 14:07:06,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52451 states. [2024-11-13 14:07:09,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52451 to 51687. [2024-11-13 14:07:09,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51687 states, 48451 states have (on average 1.0369445419083196) internal successors, (50241), 48453 states have internal predecessors, (50241), 3231 states have call successors, (3231), 2 states have call predecessors, (3231), 2 states have return successors, (3231), 3231 states have call predecessors, (3231), 3231 states have call successors, (3231) [2024-11-13 14:07:09,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51687 states to 51687 states and 56703 transitions. [2024-11-13 14:07:09,251 INFO L78 Accepts]: Start accepts. Automaton has 51687 states and 56703 transitions. Word has length 416 [2024-11-13 14:07:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:07:09,251 INFO L471 AbstractCegarLoop]: Abstraction has 51687 states and 56703 transitions. [2024-11-13 14:07:09,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 13.0) internal successors, (182), 15 states have internal predecessors, (182), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-13 14:07:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 51687 states and 56703 transitions. [2024-11-13 14:07:09,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-13 14:07:09,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:07:09,254 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:07:09,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-11-13 14:07:09,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:07:09,455 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 14:07:09,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:07:09,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1518037702, now seen corresponding path program 28 times [2024-11-13 14:07:09,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:07:09,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074985441] [2024-11-13 14:07:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:07:09,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:07:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:07:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:07:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:07:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:07:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:07:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:07:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:07:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:07:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:07:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-13 14:07:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-13 14:07:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-13 14:07:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-13 14:07:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-13 14:07:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-13 14:07:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-13 14:07:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-13 14:07:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-13 14:07:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-13 14:07:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-13 14:07:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-13 14:07:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2024-11-13 14:07:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:10,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 1715 proven. 844 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2024-11-13 14:07:10,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:07:10,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074985441] [2024-11-13 14:07:10,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074985441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:07:10,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360962017] [2024-11-13 14:07:10,081 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 14:07:10,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:07:10,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:07:10,082 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:07:10,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50e61fa5-e80f-4ca5-8f7a-80c334158894/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-13 14:07:10,203 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 14:07:10,203 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:07:10,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:07:10,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:07:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 2079 proven. 844 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2024-11-13 14:07:10,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:07:11,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 1715 proven. 844 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2024-11-13 14:07:11,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360962017] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:07:11,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:07:11,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 25 [2024-11-13 14:07:11,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065747091] [2024-11-13 14:07:11,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:07:11,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 14:07:11,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:07:11,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 14:07:11,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:07:11,137 INFO L87 Difference]: Start difference. First operand 51687 states and 56703 transitions. Second operand has 25 states, 25 states have (on average 14.32) internal successors, (358), 25 states have internal predecessors, (358), 24 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26)