./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ --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 64bit --witnessprinter.graph.data.programhash 01a4b84af22ba9336b377376d27423612474043c2c250fad1845bccdee580746 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:30:57,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:30:58,005 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-23 22:30:58,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:30:58,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:30:58,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:30:58,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:30:58,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:30:58,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:30:58,061 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:30:58,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:30:58,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:30:58,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:30:58,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:30:58,067 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:30:58,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:30:58,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:30:58,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:30:58,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:30:58,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:30:58,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:30:58,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:30:58,072 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:30:58,072 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:30:58,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:30:58,074 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:30:58,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:30:58,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:30:58,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:30:58,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:30:58,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:30:58,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:30:58,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:30:58,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:30:58,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:30:58,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:30:58,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:30:58,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:30:58,098 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:30:58,098 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:30:58,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:30:58,099 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01a4b84af22ba9336b377376d27423612474043c2c250fad1845bccdee580746 [2023-11-23 22:30:58,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:30:58,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:30:58,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:30:58,550 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:30:58,551 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:30:58,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c [2023-11-23 22:31:01,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:31:02,127 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:31:02,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c [2023-11-23 22:31:02,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/data/dc5c99cd0/10919e86874d4550abe5d0b7f0bbf83c/FLAG75c34e8c0 [2023-11-23 22:31:02,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/data/dc5c99cd0/10919e86874d4550abe5d0b7f0bbf83c [2023-11-23 22:31:02,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:31:02,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:31:02,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:31:02,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:31:02,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:31:02,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dae662d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02, skipping insertion in model container [2023-11-23 22:31:02,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,192 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:31:02,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:31:02,377 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:31:02,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:31:02,412 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:31:02,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02 WrapperNode [2023-11-23 22:31:02,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:31:02,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:31:02,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:31:02,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:31:02,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,452 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2023-11-23 22:31:02,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:31:02,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:31:02,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:31:02,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:31:02,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,466 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,472 INFO L189 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-23 22:31:02,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:31:02,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:31:02,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:31:02,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:31:02,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (1/1) ... [2023-11-23 22:31:02,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:31:02,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:02,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:31:02,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:31:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:31:02,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:31:02,646 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:31:02,648 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:31:02,798 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:31:02,835 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:31:02,835 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 22:31:02,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:31:02 BoogieIcfgContainer [2023-11-23 22:31:02,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:31:02,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:31:02,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:31:02,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:31:02,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:31:02" (1/3) ... [2023-11-23 22:31:02,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e24e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:31:02, skipping insertion in model container [2023-11-23 22:31:02,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:31:02" (2/3) ... [2023-11-23 22:31:02,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e24e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:31:02, skipping insertion in model container [2023-11-23 22:31:02,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:31:02" (3/3) ... [2023-11-23 22:31:02,856 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c [2023-11-23 22:31:02,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:31:02,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-23 22:31:02,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:31:02,939 INFO L357 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, mHoare=true, 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;@52266477, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:31:02,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-23 22:31:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 2.0) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:02,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 22:31:02,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:02,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:31:02,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:02,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:02,957 INFO L85 PathProgramCache]: Analyzing trace with hash 86974082, now seen corresponding path program 1 times [2023-11-23 22:31:02,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:02,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091333369] [2023-11-23 22:31:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:03,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:03,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091333369] [2023-11-23 22:31:03,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091333369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:03,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:03,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:31:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396455736] [2023-11-23 22:31:03,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:03,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:31:03,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:03,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:31:03,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:03,223 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 2.0) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:03,278 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2023-11-23 22:31:03,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:31:03,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 22:31:03,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:03,289 INFO L225 Difference]: With dead ends: 53 [2023-11-23 22:31:03,289 INFO L226 Difference]: Without dead ends: 32 [2023-11-23 22:31:03,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:03,296 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:03,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 27 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:03,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-23 22:31:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2023-11-23 22:31:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.625) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-11-23 22:31:03,333 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 5 [2023-11-23 22:31:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:03,334 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-11-23 22:31:03,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,334 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-11-23 22:31:03,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 22:31:03,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:03,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:31:03,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:31:03,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:03,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:03,337 INFO L85 PathProgramCache]: Analyzing trace with hash 86974120, now seen corresponding path program 1 times [2023-11-23 22:31:03,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:03,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182657025] [2023-11-23 22:31:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:03,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:03,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:03,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182657025] [2023-11-23 22:31:03,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182657025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:03,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:03,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:31:03,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784598925] [2023-11-23 22:31:03,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:03,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:31:03,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:03,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:31:03,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:03,415 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:03,460 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2023-11-23 22:31:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:31:03,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 22:31:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:03,463 INFO L225 Difference]: With dead ends: 23 [2023-11-23 22:31:03,464 INFO L226 Difference]: Without dead ends: 22 [2023-11-23 22:31:03,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:03,468 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:03,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:03,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-23 22:31:03,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2023-11-23 22:31:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.5625) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2023-11-23 22:31:03,488 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 5 [2023-11-23 22:31:03,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:03,488 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2023-11-23 22:31:03,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,489 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-23 22:31:03,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 22:31:03,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:03,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 22:31:03,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:31:03,492 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:03,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:03,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1598770673, now seen corresponding path program 1 times [2023-11-23 22:31:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:03,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530899236] [2023-11-23 22:31:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:03,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:03,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:03,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530899236] [2023-11-23 22:31:03,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530899236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:03,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:03,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:31:03,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731922945] [2023-11-23 22:31:03,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:03,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:31:03,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:03,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:31:03,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:03,546 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:03,575 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-11-23 22:31:03,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:31:03,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 22:31:03,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:03,578 INFO L225 Difference]: With dead ends: 35 [2023-11-23 22:31:03,578 INFO L226 Difference]: Without dead ends: 34 [2023-11-23 22:31:03,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:03,580 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:03,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 24 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:03,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-23 22:31:03,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2023-11-23 22:31:03,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2023-11-23 22:31:03,590 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2023-11-23 22:31:03,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:03,590 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2023-11-23 22:31:03,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-23 22:31:03,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 22:31:03,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:03,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 22:31:03,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:31:03,593 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:03,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:03,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1598769519, now seen corresponding path program 1 times [2023-11-23 22:31:03,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:03,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519408175] [2023-11-23 22:31:03,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:03,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:03,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:03,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:03,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519408175] [2023-11-23 22:31:03,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519408175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:03,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:03,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:31:03,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930250667] [2023-11-23 22:31:03,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:03,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:31:03,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:03,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:31:03,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:03,643 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:03,666 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2023-11-23 22:31:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:31:03,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 22:31:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:03,668 INFO L225 Difference]: With dead ends: 34 [2023-11-23 22:31:03,669 INFO L226 Difference]: Without dead ends: 33 [2023-11-23 22:31:03,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:31:03,670 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:03,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 28 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-23 22:31:03,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2023-11-23 22:31:03,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2023-11-23 22:31:03,686 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 6 [2023-11-23 22:31:03,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:03,687 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2023-11-23 22:31:03,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,688 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-23 22:31:03,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 22:31:03,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:03,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:03,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:31:03,690 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:03,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:03,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1180786323, now seen corresponding path program 1 times [2023-11-23 22:31:03,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:03,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167312853] [2023-11-23 22:31:03,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:03,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:03,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:03,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167312853] [2023-11-23 22:31:03,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167312853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:03,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:03,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:31:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657031089] [2023-11-23 22:31:03,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:03,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:31:03,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:31:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:31:03,810 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:03,863 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-23 22:31:03,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:31:03,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 22:31:03,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:03,865 INFO L225 Difference]: With dead ends: 31 [2023-11-23 22:31:03,865 INFO L226 Difference]: Without dead ends: 29 [2023-11-23 22:31:03,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:31:03,867 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:03,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 12 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:03,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-23 22:31:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2023-11-23 22:31:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.368421052631579) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-11-23 22:31:03,875 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 8 [2023-11-23 22:31:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:03,876 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-11-23 22:31:03,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:03,876 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-11-23 22:31:03,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 22:31:03,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:03,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:03,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:31:03,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:03,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:03,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2050329581, now seen corresponding path program 1 times [2023-11-23 22:31:03,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:03,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92786115] [2023-11-23 22:31:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:03,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:03,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:03,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:03,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92786115] [2023-11-23 22:31:03,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92786115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:03,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:31:03,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:31:03,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643391925] [2023-11-23 22:31:03,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:03,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:31:03,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:03,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:31:03,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:31:03,973 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:04,077 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2023-11-23 22:31:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:31:04,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-23 22:31:04,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:04,079 INFO L225 Difference]: With dead ends: 48 [2023-11-23 22:31:04,079 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 22:31:04,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:31:04,081 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 28 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:04,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 30 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:31:04,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 22:31:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2023-11-23 22:31:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:04,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-11-23 22:31:04,089 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 9 [2023-11-23 22:31:04,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:04,090 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-11-23 22:31:04,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:04,090 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-23 22:31:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 22:31:04,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:04,091 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-23 22:31:04,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:31:04,092 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:04,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:04,092 INFO L85 PathProgramCache]: Analyzing trace with hash -202122184, now seen corresponding path program 1 times [2023-11-23 22:31:04,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:04,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000725661] [2023-11-23 22:31:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:04,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:04,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:04,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000725661] [2023-11-23 22:31:04,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000725661] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:04,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199470170] [2023-11-23 22:31:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:04,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:04,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:04,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:04,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:31:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:04,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:31:04,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:04,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:04,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:04,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199470170] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:04,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:04,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-23 22:31:04,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524211137] [2023-11-23 22:31:04,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:04,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:31:04,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:04,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:31:04,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:31:04,298 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:04,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:04,347 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2023-11-23 22:31:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:31:04,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-23 22:31:04,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:04,349 INFO L225 Difference]: With dead ends: 76 [2023-11-23 22:31:04,349 INFO L226 Difference]: Without dead ends: 75 [2023-11-23 22:31:04,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:31:04,351 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 48 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:04,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 53 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-23 22:31:04,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 43. [2023-11-23 22:31:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.325) internal successors, (53), 42 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:04,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2023-11-23 22:31:04,363 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 10 [2023-11-23 22:31:04,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:04,363 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2023-11-23 22:31:04,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:04,364 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2023-11-23 22:31:04,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 22:31:04,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:04,365 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:04,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:04,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:04,585 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:04,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:04,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1021578652, now seen corresponding path program 1 times [2023-11-23 22:31:04,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:04,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080044181] [2023-11-23 22:31:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:04,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:04,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:04,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080044181] [2023-11-23 22:31:04,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080044181] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:04,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277365741] [2023-11-23 22:31:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:04,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:04,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:04,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:04,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:31:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:04,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:31:04,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:04,704 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:04,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:04,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277365741] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:04,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:04,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-23 22:31:04,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441491000] [2023-11-23 22:31:04,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:04,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:31:04,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:04,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:31:04,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:31:04,753 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:04,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:04,801 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2023-11-23 22:31:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:31:04,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-23 22:31:04,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:04,803 INFO L225 Difference]: With dead ends: 113 [2023-11-23 22:31:04,803 INFO L226 Difference]: Without dead ends: 112 [2023-11-23 22:31:04,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:31:04,805 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 41 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:04,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 52 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:04,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-23 22:31:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 85. [2023-11-23 22:31:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 82 states have (on average 1.3414634146341464) internal successors, (110), 84 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:04,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2023-11-23 22:31:04,822 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 11 [2023-11-23 22:31:04,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:04,823 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2023-11-23 22:31:04,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2023-11-23 22:31:04,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 22:31:04,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:04,824 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:04,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:05,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 22:31:05,038 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:05,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:05,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1656401745, now seen corresponding path program 1 times [2023-11-23 22:31:05,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:05,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900992641] [2023-11-23 22:31:05,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:05,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:31:05,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:05,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900992641] [2023-11-23 22:31:05,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900992641] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:05,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245998613] [2023-11-23 22:31:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:05,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:05,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:05,087 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:05,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:31:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:05,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:31:05,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:05,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:05,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245998613] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:05,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:05,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 4, 4] total 8 [2023-11-23 22:31:05,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613409241] [2023-11-23 22:31:05,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:05,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:31:05,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:05,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:31:05,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:31:05,210 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:05,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:05,587 INFO L93 Difference]: Finished difference Result 264 states and 355 transitions. [2023-11-23 22:31:05,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 22:31:05,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-23 22:31:05,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:05,593 INFO L225 Difference]: With dead ends: 264 [2023-11-23 22:31:05,593 INFO L226 Difference]: Without dead ends: 262 [2023-11-23 22:31:05,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2023-11-23 22:31:05,597 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 133 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:05,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 65 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:31:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-23 22:31:05,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 122. [2023-11-23 22:31:05,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.3166666666666667) internal successors, (158), 121 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:05,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 158 transitions. [2023-11-23 22:31:05,639 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 158 transitions. Word has length 12 [2023-11-23 22:31:05,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:05,639 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 158 transitions. [2023-11-23 22:31:05,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:05,640 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 158 transitions. [2023-11-23 22:31:05,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 22:31:05,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:05,641 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:05,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:05,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 22:31:05,858 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:05,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:05,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1008557569, now seen corresponding path program 1 times [2023-11-23 22:31:05,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:05,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067715597] [2023-11-23 22:31:05,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:05,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:05,924 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:31:05,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:05,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067715597] [2023-11-23 22:31:05,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067715597] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:05,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092870903] [2023-11-23 22:31:05,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:05,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:05,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:05,927 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:05,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:31:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:05,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:31:05,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:31:06,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:31:06,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092870903] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:06,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:06,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2023-11-23 22:31:06,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719887355] [2023-11-23 22:31:06,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:06,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:31:06,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:06,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:31:06,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:31:06,037 INFO L87 Difference]: Start difference. First operand 122 states and 158 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:06,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:06,104 INFO L93 Difference]: Finished difference Result 195 states and 250 transitions. [2023-11-23 22:31:06,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:31:06,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-23 22:31:06,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:06,106 INFO L225 Difference]: With dead ends: 195 [2023-11-23 22:31:06,106 INFO L226 Difference]: Without dead ends: 135 [2023-11-23 22:31:06,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:31:06,108 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 17 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:06,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 49 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:06,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-23 22:31:06,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 128. [2023-11-23 22:31:06,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 126 states have (on average 1.2857142857142858) internal successors, (162), 127 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 162 transitions. [2023-11-23 22:31:06,136 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 162 transitions. Word has length 18 [2023-11-23 22:31:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:06,137 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 162 transitions. [2023-11-23 22:31:06,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 162 transitions. [2023-11-23 22:31:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 22:31:06,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:06,139 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:06,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:06,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:06,356 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:06,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:06,356 INFO L85 PathProgramCache]: Analyzing trace with hash -208336255, now seen corresponding path program 2 times [2023-11-23 22:31:06,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:06,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125908864] [2023-11-23 22:31:06,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:06,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:06,399 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 22:31:06,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:06,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125908864] [2023-11-23 22:31:06,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125908864] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:06,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492142469] [2023-11-23 22:31:06,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:31:06,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:06,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:06,402 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:06,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:31:06,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 22:31:06,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:06,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:31:06,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:06,496 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 22:31:06,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 22:31:06,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492142469] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:06,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:06,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2023-11-23 22:31:06,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034692751] [2023-11-23 22:31:06,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:06,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:31:06,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:06,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:31:06,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:31:06,532 INFO L87 Difference]: Start difference. First operand 128 states and 162 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:06,569 INFO L93 Difference]: Finished difference Result 129 states and 162 transitions. [2023-11-23 22:31:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:31:06,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-23 22:31:06,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:06,572 INFO L225 Difference]: With dead ends: 129 [2023-11-23 22:31:06,572 INFO L226 Difference]: Without dead ends: 110 [2023-11-23 22:31:06,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:31:06,573 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:06,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 18 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:06,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-23 22:31:06,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-11-23 22:31:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.2962962962962963) internal successors, (140), 109 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:06,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2023-11-23 22:31:06,609 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 18 [2023-11-23 22:31:06,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:06,609 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2023-11-23 22:31:06,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:06,609 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2023-11-23 22:31:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 22:31:06,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:06,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:06,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:06,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:06,834 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:06,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:06,835 INFO L85 PathProgramCache]: Analyzing trace with hash 177448344, now seen corresponding path program 1 times [2023-11-23 22:31:06,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:06,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536168878] [2023-11-23 22:31:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:06,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:06,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:06,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536168878] [2023-11-23 22:31:06,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536168878] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:06,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222664910] [2023-11-23 22:31:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:06,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:06,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:06,951 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:06,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:31:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:07,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:31:07,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:07,074 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:07,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:07,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222664910] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:07,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:07,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-23 22:31:07,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077496586] [2023-11-23 22:31:07,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:07,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 22:31:07,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:07,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 22:31:07,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:31:07,199 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:07,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:07,823 INFO L93 Difference]: Finished difference Result 567 states and 707 transitions. [2023-11-23 22:31:07,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-23 22:31:07,826 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-23 22:31:07,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:07,829 INFO L225 Difference]: With dead ends: 567 [2023-11-23 22:31:07,829 INFO L226 Difference]: Without dead ends: 566 [2023-11-23 22:31:07,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=560, Invalid=1080, Unknown=0, NotChecked=0, Total=1640 [2023-11-23 22:31:07,831 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 313 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:07,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 80 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:31:07,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-11-23 22:31:07,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 214. [2023-11-23 22:31:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 212 states have (on average 1.2924528301886793) internal successors, (274), 213 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:07,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 274 transitions. [2023-11-23 22:31:07,874 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 274 transitions. Word has length 20 [2023-11-23 22:31:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:07,875 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 274 transitions. [2023-11-23 22:31:07,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:07,875 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 274 transitions. [2023-11-23 22:31:07,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 22:31:07,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:07,877 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2023-11-23 22:31:07,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:08,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 22:31:08,097 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:08,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:08,098 INFO L85 PathProgramCache]: Analyzing trace with hash -568918959, now seen corresponding path program 2 times [2023-11-23 22:31:08,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:08,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992211129] [2023-11-23 22:31:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:08,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,145 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 22:31:08,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992211129] [2023-11-23 22:31:08,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992211129] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195846905] [2023-11-23 22:31:08,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:31:08,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:08,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:08,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:08,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:31:08,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 22:31:08,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:08,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:31:08,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:08,225 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 22:31:08,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 22:31:08,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195846905] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:08,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:08,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2023-11-23 22:31:08,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104747044] [2023-11-23 22:31:08,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:08,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:31:08,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:08,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:31:08,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:31:08,268 INFO L87 Difference]: Start difference. First operand 214 states and 274 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:08,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:08,316 INFO L93 Difference]: Finished difference Result 214 states and 274 transitions. [2023-11-23 22:31:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:31:08,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-23 22:31:08,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:08,320 INFO L225 Difference]: With dead ends: 214 [2023-11-23 22:31:08,320 INFO L226 Difference]: Without dead ends: 213 [2023-11-23 22:31:08,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:31:08,321 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:08,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 17 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-23 22:31:08,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 68. [2023-11-23 22:31:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 67 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:08,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2023-11-23 22:31:08,347 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 26 [2023-11-23 22:31:08,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:08,348 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2023-11-23 22:31:08,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:08,348 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2023-11-23 22:31:08,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 22:31:08,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:08,349 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:08,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:08,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:08,564 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:08,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:08,564 INFO L85 PathProgramCache]: Analyzing trace with hash 520429242, now seen corresponding path program 2 times [2023-11-23 22:31:08,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:08,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556297502] [2023-11-23 22:31:08,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:08,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:08,666 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 22:31:08,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:08,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556297502] [2023-11-23 22:31:08,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556297502] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:08,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236246637] [2023-11-23 22:31:08,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:31:08,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:08,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:08,668 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:08,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:31:08,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:31:08,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:08,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:31:08,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 22:31:08,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:31:08,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236246637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:31:08,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:31:08,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-23 22:31:08,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8634416] [2023-11-23 22:31:08,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:31:08,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:31:08,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:08,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:31:08,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:31:08,742 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:08,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:08,804 INFO L93 Difference]: Finished difference Result 135 states and 166 transitions. [2023-11-23 22:31:08,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:31:08,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2023-11-23 22:31:08,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:08,805 INFO L225 Difference]: With dead ends: 135 [2023-11-23 22:31:08,805 INFO L226 Difference]: Without dead ends: 80 [2023-11-23 22:31:08,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:31:08,807 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:08,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:31:08,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-23 22:31:08,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2023-11-23 22:31:08,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 74 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:08,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2023-11-23 22:31:08,837 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 33 [2023-11-23 22:31:08,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:08,838 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2023-11-23 22:31:08,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:08,838 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2023-11-23 22:31:08,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 22:31:08,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:08,839 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 22:31:08,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:09,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:09,064 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:09,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:09,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1744570776, now seen corresponding path program 3 times [2023-11-23 22:31:09,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:09,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263600048] [2023-11-23 22:31:09,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:09,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:09,239 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:31:09,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:09,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263600048] [2023-11-23 22:31:09,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263600048] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:09,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589150960] [2023-11-23 22:31:09,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 22:31:09,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:09,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:09,242 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:09,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 22:31:09,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 22:31:09,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:09,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:31:09,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:09,374 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-23 22:31:09,375 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-23 22:31:09,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589150960] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:09,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:09,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 14 [2023-11-23 22:31:09,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113279066] [2023-11-23 22:31:09,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:09,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 22:31:09,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:09,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 22:31:09,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:31:09,451 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:09,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:09,909 INFO L93 Difference]: Finished difference Result 179 states and 203 transitions. [2023-11-23 22:31:09,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-23 22:31:09,909 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-23 22:31:09,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:09,910 INFO L225 Difference]: With dead ends: 179 [2023-11-23 22:31:09,910 INFO L226 Difference]: Without dead ends: 42 [2023-11-23 22:31:09,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 64 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=530, Invalid=1030, Unknown=0, NotChecked=0, Total=1560 [2023-11-23 22:31:09,916 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 217 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:09,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 51 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:31:09,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-23 22:31:09,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2023-11-23 22:31:09,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 38 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:09,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2023-11-23 22:31:09,926 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 35 [2023-11-23 22:31:09,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:09,928 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2023-11-23 22:31:09,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:09,928 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2023-11-23 22:31:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 22:31:09,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:09,929 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:09,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:10,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 22:31:10,148 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:10,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:10,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2059888154, now seen corresponding path program 3 times [2023-11-23 22:31:10,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:10,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656557059] [2023-11-23 22:31:10,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:10,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:10,304 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:10,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:10,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656557059] [2023-11-23 22:31:10,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656557059] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:10,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073412244] [2023-11-23 22:31:10,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 22:31:10,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:10,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:10,306 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:10,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 22:31:10,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2023-11-23 22:31:10,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:10,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 22:31:10,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:10,415 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:10,415 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:10,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073412244] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:10,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:10,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-11-23 22:31:10,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512861451] [2023-11-23 22:31:10,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:10,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-23 22:31:10,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:10,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-23 22:31:10,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=348, Unknown=0, NotChecked=0, Total=552 [2023-11-23 22:31:10,645 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 24 states, 23 states have (on average 3.0) internal successors, (69), 24 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:11,276 INFO L93 Difference]: Finished difference Result 139 states and 159 transitions. [2023-11-23 22:31:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 22:31:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0) internal successors, (69), 24 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-23 22:31:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:11,278 INFO L225 Difference]: With dead ends: 139 [2023-11-23 22:31:11,278 INFO L226 Difference]: Without dead ends: 72 [2023-11-23 22:31:11,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=904, Invalid=1748, Unknown=0, NotChecked=0, Total=2652 [2023-11-23 22:31:11,280 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 317 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:11,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 69 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:31:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-23 22:31:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2023-11-23 22:31:11,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.0294117647058822) internal successors, (70), 68 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:11,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2023-11-23 22:31:11,300 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 35 [2023-11-23 22:31:11,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:11,300 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2023-11-23 22:31:11,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0) internal successors, (69), 24 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:11,300 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2023-11-23 22:31:11,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 22:31:11,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:11,301 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:11,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:11,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 22:31:11,522 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:11,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:11,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1173896614, now seen corresponding path program 4 times [2023-11-23 22:31:11,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:11,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206994725] [2023-11-23 22:31:11,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:11,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:11,946 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:11,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:11,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206994725] [2023-11-23 22:31:11,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206994725] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:11,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985695132] [2023-11-23 22:31:11,948 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 22:31:11,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:11,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:11,949 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:11,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 22:31:12,007 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 22:31:12,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:12,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-23 22:31:12,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:12,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:12,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985695132] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:12,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:12,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 43 [2023-11-23 22:31:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102846098] [2023-11-23 22:31:12,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:12,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-11-23 22:31:12,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-11-23 22:31:12,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=794, Invalid=1098, Unknown=0, NotChecked=0, Total=1892 [2023-11-23 22:31:12,895 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand has 44 states, 43 states have (on average 3.0) internal successors, (129), 44 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:14,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:14,826 INFO L93 Difference]: Finished difference Result 259 states and 299 transitions. [2023-11-23 22:31:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-23 22:31:14,827 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.0) internal successors, (129), 44 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-23 22:31:14,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:14,828 INFO L225 Difference]: With dead ends: 259 [2023-11-23 22:31:14,828 INFO L226 Difference]: Without dead ends: 132 [2023-11-23 22:31:14,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2056 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3499, Invalid=6803, Unknown=0, NotChecked=0, Total=10302 [2023-11-23 22:31:14,833 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 486 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:14,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 104 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:31:14,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-23 22:31:14,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2023-11-23 22:31:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.015625) internal successors, (130), 128 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2023-11-23 22:31:14,867 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 65 [2023-11-23 22:31:14,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:14,867 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2023-11-23 22:31:14,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.0) internal successors, (129), 44 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:14,868 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2023-11-23 22:31:14,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-23 22:31:14,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:14,869 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:14,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:15,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 22:31:15,084 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:15,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1841801946, now seen corresponding path program 5 times [2023-11-23 22:31:15,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:15,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847937548] [2023-11-23 22:31:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:15,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 0 proven. 2148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:17,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:17,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847937548] [2023-11-23 22:31:17,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847937548] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:17,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578570002] [2023-11-23 22:31:17,217 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 22:31:17,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:17,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:17,218 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:17,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 22:31:17,311 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 40 check-sat command(s) [2023-11-23 22:31:17,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:17,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-23 22:31:17,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:17,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 0 proven. 2148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:17,501 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 0 proven. 2148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:19,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578570002] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:19,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:19,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 83 [2023-11-23 22:31:19,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77697778] [2023-11-23 22:31:19,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:19,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2023-11-23 22:31:19,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:19,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2023-11-23 22:31:19,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3174, Invalid=3798, Unknown=0, NotChecked=0, Total=6972 [2023-11-23 22:31:19,904 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand has 84 states, 83 states have (on average 3.0) internal successors, (249), 84 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:25,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:31:25,963 INFO L93 Difference]: Finished difference Result 499 states and 579 transitions. [2023-11-23 22:31:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2023-11-23 22:31:25,976 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 83 states have (on average 3.0) internal successors, (249), 84 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-11-23 22:31:25,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:31:25,978 INFO L225 Difference]: With dead ends: 499 [2023-11-23 22:31:25,978 INFO L226 Difference]: Without dead ends: 252 [2023-11-23 22:31:25,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8506 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=13789, Invalid=26813, Unknown=0, NotChecked=0, Total=40602 [2023-11-23 22:31:25,991 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1447 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:31:25,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 173 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 22:31:25,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-23 22:31:26,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 249. [2023-11-23 22:31:26,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.0080645161290323) internal successors, (250), 248 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 250 transitions. [2023-11-23 22:31:26,056 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 250 transitions. Word has length 125 [2023-11-23 22:31:26,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:31:26,056 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 250 transitions. [2023-11-23 22:31:26,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 83 states have (on average 3.0) internal successors, (249), 84 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:31:26,057 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 250 transitions. [2023-11-23 22:31:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-23 22:31:26,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:31:26,060 INFO L195 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:31:26,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:31:26,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 22:31:26,280 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 22:31:26,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:31:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash -625722406, now seen corresponding path program 6 times [2023-11-23 22:31:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:31:26,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038621835] [2023-11-23 22:31:26,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:31:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:31:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:31:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 9088 backedges. 0 proven. 9088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:31,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:31:31,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038621835] [2023-11-23 22:31:31,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038621835] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:31:31,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362467738] [2023-11-23 22:31:31,577 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-23 22:31:31,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:31:31,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:31:31,578 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:31:31,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2959fb0e-db2e-4ce3-b102-6db98f91804d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 22:31:31,738 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 80 check-sat command(s) [2023-11-23 22:31:31,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:31:31,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 82 conjunts are in the unsatisfiable core [2023-11-23 22:31:31,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:31:32,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9088 backedges. 0 proven. 9088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:32,166 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:31:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 9088 backedges. 0 proven. 9088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:31:40,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362467738] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:31:40,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:31:40,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82, 82] total 163 [2023-11-23 22:31:40,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109689882] [2023-11-23 22:31:40,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:31:40,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 164 states [2023-11-23 22:31:40,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:31:40,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2023-11-23 22:31:40,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12734, Invalid=13998, Unknown=0, NotChecked=0, Total=26732 [2023-11-23 22:31:40,516 INFO L87 Difference]: Start difference. First operand 249 states and 250 transitions. Second operand has 164 states, 163 states have (on average 3.0) internal successors, (489), 164 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)