./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:02,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:02,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:08:02,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:02,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:02,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:02,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:02,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:02,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:02,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:02,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:02,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:02,873 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:02,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:02,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:02,876 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:08:02,877 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:02,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:08:02,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:02,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:02,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:02,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:02,880 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:08:02,880 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:08:02,881 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:08:02,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:02,883 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:02,884 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:02,884 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:02,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:02,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:02,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:02,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:02,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:02,887 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:02,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:02,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:02,888 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:02,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:02,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:02,889 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:02,889 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_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 [2023-11-12 02:08:03,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:03,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:03,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:03,252 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:03,252 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:03,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2023-11-12 02:08:06,538 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:08:06,859 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:08:06,860 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2023-11-12 02:08:06,885 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/data/ae76b48f5/430536d4a125425d9c00828adc3ebe6d/FLAG3418397bc [2023-11-12 02:08:06,904 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/data/ae76b48f5/430536d4a125425d9c00828adc3ebe6d [2023-11-12 02:08:06,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:08:06,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:08:06,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:06,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:08:06,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:08:06,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:06" (1/1) ... [2023-11-12 02:08:06,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b239e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:06, skipping insertion in model container [2023-11-12 02:08:06,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:06" (1/1) ... [2023-11-12 02:08:06,986 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:08:07,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:07,357 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:08:07,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:07,452 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:08:07,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07 WrapperNode [2023-11-12 02:08:07,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:07,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:07,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:08:07,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:08:07,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,507 INFO L138 Inliner]: procedures = 126, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2023-11-12 02:08:07,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:07,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:08:07,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:08:07,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:08:07,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:08:07,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:08:07,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:08:07,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:08:07,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (1/1) ... [2023-11-12 02:08:07,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:07,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:07,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:08:07,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:08:07,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:08:07,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:08:07,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:08:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:08:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:08:07,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:08:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:08:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:08:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:08:07,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:08:07,805 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:08:07,807 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:08:08,034 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:08:08,041 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:08:08,041 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:08:08,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:08 BoogieIcfgContainer [2023-11-12 02:08:08,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:08:08,046 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:08:08,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:08:08,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:08:08,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:08:06" (1/3) ... [2023-11-12 02:08:08,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1859907e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:08, skipping insertion in model container [2023-11-12 02:08:08,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:07" (2/3) ... [2023-11-12 02:08:08,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1859907e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:08, skipping insertion in model container [2023-11-12 02:08:08,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:08" (3/3) ... [2023-11-12 02:08:08,054 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0232_1-1.i [2023-11-12 02:08:08,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:08:08,071 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 02:08:08,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:08:08,143 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;@d4497c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:08:08,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-12 02:08:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 31 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) [2023-11-12 02:08:08,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 02:08:08,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:08,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 02:08:08,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:08,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2023-11-12 02:08:08,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:08,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741441509] [2023-11-12 02:08:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:08,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:08,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:08,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741441509] [2023-11-12 02:08:08,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741441509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:08,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:08,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:08:08,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941264079] [2023-11-12 02:08:08,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:08,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:08:08,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:08,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:08:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:08:08,636 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 31 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) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-12 02:08:08,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:08,754 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2023-11-12 02:08:08,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:08:08,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-12 02:08:08,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:08,763 INFO L225 Difference]: With dead ends: 53 [2023-11-12 02:08:08,763 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 02:08:08,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:08,770 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:08,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 93 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:08,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 02:08:08,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-12 02:08:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 30 states have internal predecessors, (35), 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) [2023-11-12 02:08:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2023-11-12 02:08:08,808 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 4 [2023-11-12 02:08:08,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:08,808 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2023-11-12 02:08:08,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-12 02:08:08,809 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-12 02:08:08,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:08:08,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:08,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:08,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:08:08,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:08,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:08,811 INFO L85 PathProgramCache]: Analyzing trace with hash 262867306, now seen corresponding path program 1 times [2023-11-12 02:08:08,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:08,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945300246] [2023-11-12 02:08:08,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:08,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:09,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:09,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945300246] [2023-11-12 02:08:09,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945300246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:09,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:09,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:08:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092497105] [2023-11-12 02:08:09,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:09,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:09,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:09,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:09,290 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2023-11-12 02:08:09,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:09,420 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2023-11-12 02:08:09,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:08:09,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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 [2023-11-12 02:08:09,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:09,426 INFO L225 Difference]: With dead ends: 60 [2023-11-12 02:08:09,426 INFO L226 Difference]: Without dead ends: 34 [2023-11-12 02:08:09,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:08:09,428 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 5 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:09,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 101 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:09,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-12 02:08:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2023-11-12 02:08:09,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.5) internal successors, (36), 31 states have internal predecessors, (36), 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) [2023-11-12 02:08:09,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-11-12 02:08:09,440 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 9 [2023-11-12 02:08:09,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:09,441 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-11-12 02:08:09,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2023-11-12 02:08:09,442 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-11-12 02:08:09,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:08:09,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:09,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:09,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:08:09,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:09,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash 262926888, now seen corresponding path program 1 times [2023-11-12 02:08:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:09,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831510280] [2023-11-12 02:08:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:09,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:09,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:09,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:09,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831510280] [2023-11-12 02:08:09,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831510280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:09,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:09,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:09,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610115772] [2023-11-12 02:08:09,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:09,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:08:09,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:09,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:08:09,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:08:09,593 INFO L87 Difference]: Start difference. First operand 32 states and 36 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) [2023-11-12 02:08:09,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:09,659 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2023-11-12 02:08:09,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:08:09,660 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 [2023-11-12 02:08:09,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:09,662 INFO L225 Difference]: With dead ends: 38 [2023-11-12 02:08:09,663 INFO L226 Difference]: Without dead ends: 36 [2023-11-12 02:08:09,664 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 [2023-11-12 02:08:09,672 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:09,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 76 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:09,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-12 02:08:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-12 02:08:09,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 35 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) [2023-11-12 02:08:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-11-12 02:08:09,689 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 9 [2023-11-12 02:08:09,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:09,691 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-12 02:08:09,692 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) [2023-11-12 02:08:09,693 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-11-12 02:08:09,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:08:09,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:09,694 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:09,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:08:09,695 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:09,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:09,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1061284532, now seen corresponding path program 1 times [2023-11-12 02:08:09,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:09,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201592640] [2023-11-12 02:08:09,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:09,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:09,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:09,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201592640] [2023-11-12 02:08:09,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201592640] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:09,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952621609] [2023-11-12 02:08:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:09,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:09,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:09,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:08:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:10,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:08:10,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:10,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:10,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952621609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:10,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:08:10,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-12 02:08:10,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447525551] [2023-11-12 02:08:10,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:10,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:08:10,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:10,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:08:10,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:08:10,187 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-11-12 02:08:10,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:10,269 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2023-11-12 02:08:10,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:08:10,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2023-11-12 02:08:10,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:10,271 INFO L225 Difference]: With dead ends: 36 [2023-11-12 02:08:10,271 INFO L226 Difference]: Without dead ends: 35 [2023-11-12 02:08:10,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:08:10,277 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 44 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:10,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 74 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:10,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-12 02:08:10,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-12 02:08:10,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 34 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) [2023-11-12 02:08:10,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2023-11-12 02:08:10,285 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 14 [2023-11-12 02:08:10,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:10,285 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2023-11-12 02:08:10,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-11-12 02:08:10,286 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-11-12 02:08:10,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:08:10,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:10,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:10,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:10,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:10,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:10,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:10,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1459934495, now seen corresponding path program 1 times [2023-11-12 02:08:10,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:10,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877826669] [2023-11-12 02:08:10,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:10,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:10,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:10,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:10,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877826669] [2023-11-12 02:08:10,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877826669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:10,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:10,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:08:10,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646980759] [2023-11-12 02:08:10,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:10,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:10,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:10,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:10,582 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-12 02:08:10,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:10,633 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2023-11-12 02:08:10,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:08:10,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2023-11-12 02:08:10,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:10,635 INFO L225 Difference]: With dead ends: 59 [2023-11-12 02:08:10,635 INFO L226 Difference]: Without dead ends: 49 [2023-11-12 02:08:10,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:08:10,636 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:10,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 90 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:10,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-12 02:08:10,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2023-11-12 02:08:10,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 37 states have internal predecessors, (42), 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) [2023-11-12 02:08:10,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-11-12 02:08:10,648 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 15 [2023-11-12 02:08:10,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:10,649 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-11-12 02:08:10,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-12 02:08:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-11-12 02:08:10,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:08:10,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:10,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:10,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:08:10,650 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:10,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:10,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1459917836, now seen corresponding path program 1 times [2023-11-12 02:08:10,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:10,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422090845] [2023-11-12 02:08:10,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:10,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:10,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:10,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:10,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422090845] [2023-11-12 02:08:10,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422090845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:10,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:10,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:10,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437504111] [2023-11-12 02:08:10,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:10,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:08:10,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:10,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:08:10,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:08:10,729 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-12 02:08:10,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:10,760 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2023-11-12 02:08:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:08:10,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2023-11-12 02:08:10,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:10,765 INFO L225 Difference]: With dead ends: 38 [2023-11-12 02:08:10,765 INFO L226 Difference]: Without dead ends: 37 [2023-11-12 02:08:10,765 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 [2023-11-12 02:08:10,767 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 73 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 [2023-11-12 02:08:10,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 73 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:10,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-12 02:08:10,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-12 02:08:10,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 36 states have internal predecessors, (41), 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) [2023-11-12 02:08:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2023-11-12 02:08:10,781 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 15 [2023-11-12 02:08:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:10,782 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2023-11-12 02:08:10,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-12 02:08:10,783 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2023-11-12 02:08:10,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:08:10,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:10,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:10,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:08:10,784 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:10,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1986266839, now seen corresponding path program 1 times [2023-11-12 02:08:10,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:10,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472372718] [2023-11-12 02:08:10,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:10,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:10,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:10,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472372718] [2023-11-12 02:08:10,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472372718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:10,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:10,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:10,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758940202] [2023-11-12 02:08:10,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:10,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:08:10,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:10,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:08:10,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:08:10,854 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-12 02:08:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:10,890 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2023-11-12 02:08:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:08:10,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2023-11-12 02:08:10,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:10,893 INFO L225 Difference]: With dead ends: 37 [2023-11-12 02:08:10,893 INFO L226 Difference]: Without dead ends: 36 [2023-11-12 02:08:10,893 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 [2023-11-12 02:08:10,894 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:10,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 58 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:10,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-12 02:08:10,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-12 02:08:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 35 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) [2023-11-12 02:08:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-11-12 02:08:10,911 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 16 [2023-11-12 02:08:10,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:10,912 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-12 02:08:10,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-12 02:08:10,912 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-11-12 02:08:10,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:08:10,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:10,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:10,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:08:10,913 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:10,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1444729942, now seen corresponding path program 1 times [2023-11-12 02:08:10,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:10,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977451942] [2023-11-12 02:08:10,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:10,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:11,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977451942] [2023-11-12 02:08:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977451942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:11,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:11,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:08:11,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840327625] [2023-11-12 02:08:11,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:11,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:08:11,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:08:11,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:08:11,025 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-11-12 02:08:11,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:11,095 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2023-11-12 02:08:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:08:11,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2023-11-12 02:08:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:11,097 INFO L225 Difference]: With dead ends: 56 [2023-11-12 02:08:11,097 INFO L226 Difference]: Without dead ends: 55 [2023-11-12 02:08:11,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:08:11,099 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 19 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:11,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 87 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-12 02:08:11,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 40. [2023-11-12 02:08:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 39 states have internal predecessors, (44), 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) [2023-11-12 02:08:11,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-11-12 02:08:11,113 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 17 [2023-11-12 02:08:11,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:11,114 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-11-12 02:08:11,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-11-12 02:08:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-11-12 02:08:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:08:11,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:11,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:11,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:08:11,115 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:11,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:11,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1111040472, now seen corresponding path program 1 times [2023-11-12 02:08:11,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:11,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802325317] [2023-11-12 02:08:11,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:11,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:11,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:11,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802325317] [2023-11-12 02:08:11,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802325317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:11,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:11,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:08:11,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452554847] [2023-11-12 02:08:11,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:11,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:11,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:11,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:11,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:11,192 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 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) [2023-11-12 02:08:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:11,209 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2023-11-12 02:08:11,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:08:11,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 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 19 [2023-11-12 02:08:11,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:11,212 INFO L225 Difference]: With dead ends: 40 [2023-11-12 02:08:11,212 INFO L226 Difference]: Without dead ends: 39 [2023-11-12 02:08:11,213 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 [2023-11-12 02:08:11,215 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:11,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 46 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:11,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-12 02:08:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-12 02:08:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 38 states have internal predecessors, (43), 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) [2023-11-12 02:08:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2023-11-12 02:08:11,223 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 19 [2023-11-12 02:08:11,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:11,224 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2023-11-12 02:08:11,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 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) [2023-11-12 02:08:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2023-11-12 02:08:11,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:08:11,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:11,225 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:11,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:08:11,226 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:11,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:11,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1529834374, now seen corresponding path program 1 times [2023-11-12 02:08:11,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:11,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885164922] [2023-11-12 02:08:11,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:11,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:11,366 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:11,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:11,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885164922] [2023-11-12 02:08:11,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885164922] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:11,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323664290] [2023-11-12 02:08:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:11,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:11,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:11,369 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:11,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:08:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:11,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:08:11,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:11,588 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:11,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:11,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323664290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:11,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:08:11,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-12 02:08:11,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872150511] [2023-11-12 02:08:11,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:11,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:11,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:11,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:11,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:08:11,590 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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) [2023-11-12 02:08:11,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:11,638 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2023-11-12 02:08:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:08:11,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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 19 [2023-11-12 02:08:11,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:11,639 INFO L225 Difference]: With dead ends: 40 [2023-11-12 02:08:11,639 INFO L226 Difference]: Without dead ends: 39 [2023-11-12 02:08:11,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:08:11,640 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 15 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:11,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 53 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:11,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-12 02:08:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2023-11-12 02:08:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.2) internal successors, (42), 37 states have internal predecessors, (42), 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) [2023-11-12 02:08:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-11-12 02:08:11,650 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 19 [2023-11-12 02:08:11,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:11,652 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-11-12 02:08:11,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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) [2023-11-12 02:08:11,652 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-11-12 02:08:11,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:08:11,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:11,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:11,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:11,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:11,865 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:11,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:11,866 INFO L85 PathProgramCache]: Analyzing trace with hash 82516356, now seen corresponding path program 1 times [2023-11-12 02:08:11,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:11,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501889858] [2023-11-12 02:08:11,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:11,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:11,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:11,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501889858] [2023-11-12 02:08:11,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501889858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:11,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:11,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:08:11,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280938078] [2023-11-12 02:08:11,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:11,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:08:11,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:11,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:08:11,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:08:11,974 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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) [2023-11-12 02:08:12,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:12,037 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2023-11-12 02:08:12,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:08:12,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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 20 [2023-11-12 02:08:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:12,038 INFO L225 Difference]: With dead ends: 52 [2023-11-12 02:08:12,038 INFO L226 Difference]: Without dead ends: 42 [2023-11-12 02:08:12,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:08:12,039 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:12,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 96 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:12,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-12 02:08:12,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2023-11-12 02:08:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 32 states have internal predecessors, (35), 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) [2023-11-12 02:08:12,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2023-11-12 02:08:12,043 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 20 [2023-11-12 02:08:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:12,043 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2023-11-12 02:08:12,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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) [2023-11-12 02:08:12,044 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2023-11-12 02:08:12,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:08:12,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:12,044 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:12,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:08:12,045 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:12,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:12,045 INFO L85 PathProgramCache]: Analyzing trace with hash -180225285, now seen corresponding path program 1 times [2023-11-12 02:08:12,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:12,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190458962] [2023-11-12 02:08:12,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:12,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:12,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:12,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190458962] [2023-11-12 02:08:12,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190458962] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:12,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850142991] [2023-11-12 02:08:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:12,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:12,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:12,146 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:12,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:08:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:12,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:08:12,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:12,335 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:12,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:12,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850142991] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:12,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:12,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-12 02:08:12,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888073397] [2023-11-12 02:08:12,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:12,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:08:12,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:12,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:08:12,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:08:12,396 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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) [2023-11-12 02:08:12,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:12,512 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2023-11-12 02:08:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:08:12,513 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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 [2023-11-12 02:08:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:12,514 INFO L225 Difference]: With dead ends: 74 [2023-11-12 02:08:12,514 INFO L226 Difference]: Without dead ends: 73 [2023-11-12 02:08:12,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:08:12,515 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 37 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:12,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 120 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:12,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-12 02:08:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2023-11-12 02:08:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 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) [2023-11-12 02:08:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2023-11-12 02:08:12,521 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 20 [2023-11-12 02:08:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:12,521 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2023-11-12 02:08:12,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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) [2023-11-12 02:08:12,521 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2023-11-12 02:08:12,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-12 02:08:12,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:12,522 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:12,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:12,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:08:12,729 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:12,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:12,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1399522472, now seen corresponding path program 1 times [2023-11-12 02:08:12,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:12,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220172999] [2023-11-12 02:08:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:12,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:12,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220172999] [2023-11-12 02:08:12,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220172999] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802800876] [2023-11-12 02:08:12,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:12,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:12,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:12,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:12,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:08:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:13,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:08:13,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:13,134 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:13,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802800876] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:13,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:13,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-11-12 02:08:13,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648945875] [2023-11-12 02:08:13,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:13,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:08:13,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:13,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:08:13,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:08:13,208 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 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) [2023-11-12 02:08:13,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:13,341 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2023-11-12 02:08:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:08:13,341 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 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) Word has length 27 [2023-11-12 02:08:13,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:13,342 INFO L225 Difference]: With dead ends: 70 [2023-11-12 02:08:13,342 INFO L226 Difference]: Without dead ends: 69 [2023-11-12 02:08:13,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:08:13,344 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 42 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:13,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 86 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:13,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-12 02:08:13,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 60. [2023-11-12 02:08:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 59 states have internal predecessors, (67), 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) [2023-11-12 02:08:13,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2023-11-12 02:08:13,350 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 27 [2023-11-12 02:08:13,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:13,352 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2023-11-12 02:08:13,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 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) [2023-11-12 02:08:13,352 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2023-11-12 02:08:13,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:08:13,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:13,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:13,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:13,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:13,562 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:13,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:13,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1926508530, now seen corresponding path program 1 times [2023-11-12 02:08:13,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:13,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002139915] [2023-11-12 02:08:13,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:13,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:13,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:13,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002139915] [2023-11-12 02:08:13,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002139915] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:13,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738751532] [2023-11-12 02:08:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:13,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:13,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:13,773 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:13,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:08:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:13,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:08:13,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:14,054 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:14,054 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:14,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738751532] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:14,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:14,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2023-11-12 02:08:14,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185378166] [2023-11-12 02:08:14,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:14,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 02:08:14,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:14,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 02:08:14,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:08:14,174 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 18 states, 17 states have (on average 4.647058823529412) internal successors, (79), 18 states have internal predecessors, (79), 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) [2023-11-12 02:08:14,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:14,382 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2023-11-12 02:08:14,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:08:14,383 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.647058823529412) internal successors, (79), 18 states have internal predecessors, (79), 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 30 [2023-11-12 02:08:14,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:14,384 INFO L225 Difference]: With dead ends: 68 [2023-11-12 02:08:14,384 INFO L226 Difference]: Without dead ends: 51 [2023-11-12 02:08:14,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2023-11-12 02:08:14,385 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 56 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:14,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 109 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:14,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-12 02:08:14,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-12 02:08:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.1) internal successors, (55), 50 states have internal predecessors, (55), 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) [2023-11-12 02:08:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2023-11-12 02:08:14,390 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 30 [2023-11-12 02:08:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:14,390 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2023-11-12 02:08:14,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.647058823529412) internal successors, (79), 18 states have internal predecessors, (79), 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) [2023-11-12 02:08:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2023-11-12 02:08:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:08:14,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:14,392 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-12 02:08:14,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:14,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:14,598 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:14,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:14,599 INFO L85 PathProgramCache]: Analyzing trace with hash -776926779, now seen corresponding path program 2 times [2023-11-12 02:08:14,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:14,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999333831] [2023-11-12 02:08:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:14,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:14,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:14,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999333831] [2023-11-12 02:08:14,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999333831] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:14,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728554238] [2023-11-12 02:08:14,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:08:14,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:14,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:14,923 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:14,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:08:15,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:08:15,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:08:15,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:08:15,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:15,286 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:15,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728554238] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:15,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:15,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-11-12 02:08:15,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60944377] [2023-11-12 02:08:15,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:15,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-12 02:08:15,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:15,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-12 02:08:15,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:08:15,512 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 24 states have internal predecessors, (108), 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) [2023-11-12 02:08:15,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:15,716 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2023-11-12 02:08:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-12 02:08:15,717 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 24 states have internal predecessors, (108), 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 50 [2023-11-12 02:08:15,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:15,718 INFO L225 Difference]: With dead ends: 112 [2023-11-12 02:08:15,718 INFO L226 Difference]: Without dead ends: 111 [2023-11-12 02:08:15,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2023-11-12 02:08:15,720 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 51 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:15,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 136 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:15,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-12 02:08:15,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-12 02:08:15,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.1) internal successors, (121), 110 states have internal predecessors, (121), 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) [2023-11-12 02:08:15,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2023-11-12 02:08:15,728 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 50 [2023-11-12 02:08:15,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:15,728 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2023-11-12 02:08:15,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 24 states have internal predecessors, (108), 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) [2023-11-12 02:08:15,729 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2023-11-12 02:08:15,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-12 02:08:15,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:15,730 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2023-11-12 02:08:15,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:15,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-12 02:08:15,937 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:15,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:15,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1073197351, now seen corresponding path program 3 times [2023-11-12 02:08:15,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:15,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559732805] [2023-11-12 02:08:15,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:17,117 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:17,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:17,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559732805] [2023-11-12 02:08:17,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559732805] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:17,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710955949] [2023-11-12 02:08:17,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:08:17,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:17,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:17,122 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:17,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:08:44,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-12 02:08:44,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:08:44,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-12 02:08:44,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:44,819 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:44,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:45,617 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:45,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710955949] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:45,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:45,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2023-11-12 02:08:45,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402779306] [2023-11-12 02:08:45,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:45,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-12 02:08:45,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:45,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-12 02:08:45,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-11-12 02:08:45,624 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 48 states, 47 states have (on average 4.851063829787234) internal successors, (228), 48 states have internal predecessors, (228), 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) [2023-11-12 02:08:46,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:46,302 INFO L93 Difference]: Finished difference Result 232 states and 265 transitions. [2023-11-12 02:08:46,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-12 02:08:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.851063829787234) internal successors, (228), 48 states have internal predecessors, (228), 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 110 [2023-11-12 02:08:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:46,305 INFO L225 Difference]: With dead ends: 232 [2023-11-12 02:08:46,306 INFO L226 Difference]: Without dead ends: 231 [2023-11-12 02:08:46,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1382, Invalid=3448, Unknown=0, NotChecked=0, Total=4830 [2023-11-12 02:08:46,309 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 160 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:46,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 233 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:46,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-12 02:08:46,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2023-11-12 02:08:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.1) internal successors, (253), 230 states have internal predecessors, (253), 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) [2023-11-12 02:08:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 253 transitions. [2023-11-12 02:08:46,325 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 253 transitions. Word has length 110 [2023-11-12 02:08:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:46,326 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 253 transitions. [2023-11-12 02:08:46,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.851063829787234) internal successors, (228), 48 states have internal predecessors, (228), 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) [2023-11-12 02:08:46,327 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 253 transitions. [2023-11-12 02:08:46,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-12 02:08:46,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:46,337 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2023-11-12 02:08:46,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-12 02:08:46,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 02:08:46,552 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:08:46,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:46,553 INFO L85 PathProgramCache]: Analyzing trace with hash 22345473, now seen corresponding path program 4 times [2023-11-12 02:08:46,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:46,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789536896] [2023-11-12 02:08:46,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:46,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2486 backedges. 0 proven. 2486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:50,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789536896] [2023-11-12 02:08:50,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789536896] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:50,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795554015] [2023-11-12 02:08:50,837 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:08:50,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:50,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:50,841 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:50,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759cbfaf-3b64-48f4-b2d5-9f11db106ea1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process