./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/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_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/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_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/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 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:50,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:50,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:17:50,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:50,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:50,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:50,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:50,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:50,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:50,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:50,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:50,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:50,571 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:50,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:50,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:17:50,574 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:50,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:50,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:50,575 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:50,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:17:50,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:50,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:17:50,578 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:17:50,578 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:17:50,579 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:50,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:17:50,579 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:50,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:50,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:50,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:50,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:50,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:50,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:50,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:17:50,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:50,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:50,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:50,585 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:17:50,586 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:50,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:50,587 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:50,587 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_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b [2023-11-12 02:17:50,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:51,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:51,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:51,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:51,007 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:51,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2023-11-12 02:17:54,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:55,023 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:55,024 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2023-11-12 02:17:55,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/data/f88ee9160/d6e5b026f55242b19ba2b0f922846507/FLAG23c55e322 [2023-11-12 02:17:55,068 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/data/f88ee9160/d6e5b026f55242b19ba2b0f922846507 [2023-11-12 02:17:55,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:55,081 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:55,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:55,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:55,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:55,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196b3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55, skipping insertion in model container [2023-11-12 02:17:55,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,157 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:55,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:55,452 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:55,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:55,526 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:55,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55 WrapperNode [2023-11-12 02:17:55,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:55,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:55,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:55,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:55,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,578 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2023-11-12 02:17:55,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:55,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:55,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:55,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:55,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:55,649 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:55,649 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:55,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:55,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (1/1) ... [2023-11-12 02:17:55,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:55,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:55,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:55,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:17:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-12 02:17:55,749 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-12 02:17:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2023-11-12 02:17:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2023-11-12 02:17:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:17:55,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:17:55,859 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:55,861 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:56,611 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:56,626 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:56,628 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:17:56,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:56 BoogieIcfgContainer [2023-11-12 02:17:56,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:56,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:56,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:56,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:56,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:55" (1/3) ... [2023-11-12 02:17:56,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c21881c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:56, skipping insertion in model container [2023-11-12 02:17:56,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:55" (2/3) ... [2023-11-12 02:17:56,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c21881c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:56, skipping insertion in model container [2023-11-12 02:17:56,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:56" (3/3) ... [2023-11-12 02:17:56,646 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2023-11-12 02:17:56,665 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:56,665 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-12 02:17:56,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:56,744 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;@a9031b0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:56,744 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-12 02:17:56,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 74 states have (on average 1.6486486486486487) internal successors, (122), 90 states have internal predecessors, (122), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:17:56,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:17:56,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:56,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:56,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:17:56,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:56,768 INFO L85 PathProgramCache]: Analyzing trace with hash -66005109, now seen corresponding path program 1 times [2023-11-12 02:17:56,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:56,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748715273] [2023-11-12 02:17:56,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:56,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:57,132 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 02:17:57,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:57,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748715273] [2023-11-12 02:17:57,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748715273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:57,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:57,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:17:57,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535356424] [2023-11-12 02:17:57,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:57,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:17:57,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:57,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:17:57,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:17:57,201 INFO L87 Difference]: Start difference. First operand has 102 states, 74 states have (on average 1.6486486486486487) internal successors, (122), 90 states have internal predecessors, (122), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:57,477 INFO L93 Difference]: Finished difference Result 246 states and 359 transitions. [2023-11-12 02:17:57,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:17:57,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 02:17:57,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:57,498 INFO L225 Difference]: With dead ends: 246 [2023-11-12 02:17:57,499 INFO L226 Difference]: Without dead ends: 137 [2023-11-12 02:17:57,510 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 02:17:57,514 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 83 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:57,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 337 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:57,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-12 02:17:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2023-11-12 02:17:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 104 states have (on average 1.5192307692307692) internal successors, (158), 116 states have internal predecessors, (158), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 171 transitions. [2023-11-12 02:17:57,610 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 171 transitions. Word has length 9 [2023-11-12 02:17:57,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:57,611 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 171 transitions. [2023-11-12 02:17:57,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,611 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 171 transitions. [2023-11-12 02:17:57,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:17:57,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:57,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:57,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:17:57,614 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:17:57,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash -531623115, now seen corresponding path program 1 times [2023-11-12 02:17:57,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:57,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175389288] [2023-11-12 02:17:57,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:57,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:57,733 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 02:17:57,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:57,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175389288] [2023-11-12 02:17:57,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175389288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:57,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:57,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:17:57,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559211337] [2023-11-12 02:17:57,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:57,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:57,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:57,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:57,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:57,739 INFO L87 Difference]: Start difference. First operand 127 states and 171 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:57,814 INFO L93 Difference]: Finished difference Result 239 states and 320 transitions. [2023-11-12 02:17:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:57,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 02:17:57,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:57,818 INFO L225 Difference]: With dead ends: 239 [2023-11-12 02:17:57,818 INFO L226 Difference]: Without dead ends: 141 [2023-11-12 02:17:57,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:17:57,822 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 13 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:57,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 201 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:57,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-12 02:17:57,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 131. [2023-11-12 02:17:57,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.5) internal successors, (162), 120 states have internal predecessors, (162), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 175 transitions. [2023-11-12 02:17:57,843 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 175 transitions. Word has length 14 [2023-11-12 02:17:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:57,844 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 175 transitions. [2023-11-12 02:17:57,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,845 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 175 transitions. [2023-11-12 02:17:57,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:17:57,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:57,846 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:57,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:17:57,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:17:57,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:57,848 INFO L85 PathProgramCache]: Analyzing trace with hash -531734429, now seen corresponding path program 1 times [2023-11-12 02:17:57,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:57,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041833222] [2023-11-12 02:17:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:57,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:57,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:17:57,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:57,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041833222] [2023-11-12 02:17:57,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041833222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:57,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:57,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:57,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307018639] [2023-11-12 02:17:57,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:57,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:57,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:57,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:57,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:57,909 INFO L87 Difference]: Start difference. First operand 131 states and 175 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:57,956 INFO L93 Difference]: Finished difference Result 137 states and 182 transitions. [2023-11-12 02:17:57,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:57,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 02:17:57,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:57,960 INFO L225 Difference]: With dead ends: 137 [2023-11-12 02:17:57,960 INFO L226 Difference]: Without dead ends: 136 [2023-11-12 02:17:57,961 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 02:17:57,963 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 4 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:57,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 207 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-12 02:17:57,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 130. [2023-11-12 02:17:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 108 states have (on average 1.4814814814814814) internal successors, (160), 119 states have internal predecessors, (160), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:57,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 173 transitions. [2023-11-12 02:17:57,983 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 173 transitions. Word has length 14 [2023-11-12 02:17:57,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:57,984 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 173 transitions. [2023-11-12 02:17:57,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:57,985 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 173 transitions. [2023-11-12 02:17:57,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:17:57,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:57,986 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:57,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:17:57,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:17:57,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:57,988 INFO L85 PathProgramCache]: Analyzing trace with hash -919169991, now seen corresponding path program 1 times [2023-11-12 02:17:57,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:57,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416108640] [2023-11-12 02:17:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:57,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:58,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:58,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416108640] [2023-11-12 02:17:58,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416108640] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:58,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500839988] [2023-11-12 02:17:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:58,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:58,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:58,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:58,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:17:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:58,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:58,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:58,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:58,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500839988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:58,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:58,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-12 02:17:58,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102924578] [2023-11-12 02:17:58,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:58,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:17:58,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:58,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:17:58,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:58,333 INFO L87 Difference]: Start difference. First operand 130 states and 173 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:58,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:58,460 INFO L93 Difference]: Finished difference Result 172 states and 234 transitions. [2023-11-12 02:17:58,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:17:58,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 02:17:58,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:58,465 INFO L225 Difference]: With dead ends: 172 [2023-11-12 02:17:58,465 INFO L226 Difference]: Without dead ends: 170 [2023-11-12 02:17:58,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:58,468 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 44 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:58,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 226 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:58,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-12 02:17:58,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 136. [2023-11-12 02:17:58,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 114 states have (on average 1.456140350877193) internal successors, (166), 125 states have internal predecessors, (166), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:58,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 179 transitions. [2023-11-12 02:17:58,490 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 179 transitions. Word has length 15 [2023-11-12 02:17:58,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:58,491 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 179 transitions. [2023-11-12 02:17:58,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:58,492 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 179 transitions. [2023-11-12 02:17:58,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:17:58,493 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:58,493 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:58,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:58,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:58,701 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:17:58,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:58,702 INFO L85 PathProgramCache]: Analyzing trace with hash 696101942, now seen corresponding path program 1 times [2023-11-12 02:17:58,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:58,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299135122] [2023-11-12 02:17:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:58,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:58,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:58,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299135122] [2023-11-12 02:17:58,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299135122] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:58,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794775262] [2023-11-12 02:17:58,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:58,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:58,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:58,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:58,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:17:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:58,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:58,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:58,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:58,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:58,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794775262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:58,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:58,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 02:17:58,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89657523] [2023-11-12 02:17:58,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:58,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:58,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:58,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:58,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:58,945 INFO L87 Difference]: Start difference. First operand 136 states and 179 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:59,028 INFO L93 Difference]: Finished difference Result 149 states and 194 transitions. [2023-11-12 02:17:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:59,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 02:17:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:59,031 INFO L225 Difference]: With dead ends: 149 [2023-11-12 02:17:59,032 INFO L226 Difference]: Without dead ends: 148 [2023-11-12 02:17:59,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 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 02:17:59,037 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 23 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:59,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 203 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:59,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-12 02:17:59,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 138. [2023-11-12 02:17:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 116 states have (on average 1.4482758620689655) internal successors, (168), 127 states have internal predecessors, (168), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:59,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 181 transitions. [2023-11-12 02:17:59,079 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 181 transitions. Word has length 15 [2023-11-12 02:17:59,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:59,079 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 181 transitions. [2023-11-12 02:17:59,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 181 transitions. [2023-11-12 02:17:59,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:17:59,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:59,084 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:59,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-12 02:17:59,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:59,292 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:17:59,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:59,293 INFO L85 PathProgramCache]: Analyzing trace with hash 225080427, now seen corresponding path program 1 times [2023-11-12 02:17:59,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:59,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804857065] [2023-11-12 02:17:59,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:59,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:59,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:17:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:59,412 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 02:17:59,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:59,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804857065] [2023-11-12 02:17:59,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804857065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:59,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:59,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:17:59,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854295061] [2023-11-12 02:17:59,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:59,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:59,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:59,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:59,421 INFO L87 Difference]: Start difference. First operand 138 states and 181 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:59,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:59,598 INFO L93 Difference]: Finished difference Result 203 states and 267 transitions. [2023-11-12 02:17:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:59,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-12 02:17:59,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:59,603 INFO L225 Difference]: With dead ends: 203 [2023-11-12 02:17:59,603 INFO L226 Difference]: Without dead ends: 201 [2023-11-12 02:17:59,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 02:17:59,605 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 82 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:59,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 377 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-12 02:17:59,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 169. [2023-11-12 02:17:59,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 146 states have (on average 1.4589041095890412) internal successors, (213), 157 states have internal predecessors, (213), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 226 transitions. [2023-11-12 02:17:59,628 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 226 transitions. Word has length 17 [2023-11-12 02:17:59,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:59,629 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 226 transitions. [2023-11-12 02:17:59,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:59,629 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 226 transitions. [2023-11-12 02:17:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:17:59,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:59,631 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:59,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:17:59,631 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:17:59,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:59,632 INFO L85 PathProgramCache]: Analyzing trace with hash 196453071, now seen corresponding path program 1 times [2023-11-12 02:17:59,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:59,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893102710] [2023-11-12 02:17:59,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:59,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:17:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:59,708 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 02:17:59,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:59,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893102710] [2023-11-12 02:17:59,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893102710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:59,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:59,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:17:59,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696897453] [2023-11-12 02:17:59,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:59,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:59,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:59,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:59,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:59,714 INFO L87 Difference]: Start difference. First operand 169 states and 226 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:59,854 INFO L93 Difference]: Finished difference Result 196 states and 259 transitions. [2023-11-12 02:17:59,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:59,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-12 02:17:59,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:59,860 INFO L225 Difference]: With dead ends: 196 [2023-11-12 02:17:59,862 INFO L226 Difference]: Without dead ends: 193 [2023-11-12 02:17:59,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 02:17:59,864 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 82 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:59,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 374 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:59,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-12 02:17:59,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 170. [2023-11-12 02:17:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 148 states have (on average 1.4324324324324325) internal successors, (212), 158 states have internal predecessors, (212), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:59,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 225 transitions. [2023-11-12 02:17:59,888 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 225 transitions. Word has length 17 [2023-11-12 02:17:59,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:59,888 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 225 transitions. [2023-11-12 02:17:59,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:17:59,889 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 225 transitions. [2023-11-12 02:17:59,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:17:59,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:59,895 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:59,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:17:59,896 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:17:59,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:59,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1443066436, now seen corresponding path program 1 times [2023-11-12 02:17:59,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:59,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485217594] [2023-11-12 02:17:59,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:59,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:00,020 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 02:18:00,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:00,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485217594] [2023-11-12 02:18:00,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485217594] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:18:00,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173633561] [2023-11-12 02:18:00,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:00,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:00,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:00,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:00,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:18:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:00,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:18:00,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:00,160 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 02:18:00,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:00,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173633561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:00,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:18:00,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-12 02:18:00,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273939297] [2023-11-12 02:18:00,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:00,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:18:00,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:00,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:18:00,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:18:00,165 INFO L87 Difference]: Start difference. First operand 170 states and 225 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:00,236 INFO L93 Difference]: Finished difference Result 206 states and 269 transitions. [2023-11-12 02:18:00,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:18:00,240 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 02:18:00,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:00,242 INFO L225 Difference]: With dead ends: 206 [2023-11-12 02:18:00,243 INFO L226 Difference]: Without dead ends: 205 [2023-11-12 02:18:00,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:18:00,244 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 20 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:00,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 224 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:18:00,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-12 02:18:00,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 166. [2023-11-12 02:18:00,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 144 states have (on average 1.4236111111111112) internal successors, (205), 154 states have internal predecessors, (205), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:18:00,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 218 transitions. [2023-11-12 02:18:00,264 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 218 transitions. Word has length 17 [2023-11-12 02:18:00,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:00,265 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 218 transitions. [2023-11-12 02:18:00,265 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:00,265 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 218 transitions. [2023-11-12 02:18:00,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:18:00,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:00,269 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:00,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:00,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:00,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:00,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:00,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1294542200, now seen corresponding path program 1 times [2023-11-12 02:18:00,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:00,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407983634] [2023-11-12 02:18:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:00,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:18:00,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:00,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407983634] [2023-11-12 02:18:00,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407983634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:00,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:00,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:00,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548880553] [2023-11-12 02:18:00,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:00,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:00,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:00,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:00,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:00,596 INFO L87 Difference]: Start difference. First operand 166 states and 218 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:18:00,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:00,721 INFO L93 Difference]: Finished difference Result 186 states and 244 transitions. [2023-11-12 02:18:00,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:18:00,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-12 02:18:00,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:00,726 INFO L225 Difference]: With dead ends: 186 [2023-11-12 02:18:00,726 INFO L226 Difference]: Without dead ends: 184 [2023-11-12 02:18:00,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 02:18:00,730 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 80 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:00,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 369 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:18:00,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-12 02:18:00,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 158. [2023-11-12 02:18:00,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 138 states have (on average 1.4130434782608696) internal successors, (195), 146 states have internal predecessors, (195), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:18:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2023-11-12 02:18:00,752 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 24 [2023-11-12 02:18:00,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:00,753 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2023-11-12 02:18:00,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:18:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2023-11-12 02:18:00,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:18:00,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:00,755 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:00,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:18:00,755 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:00,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:00,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1323169556, now seen corresponding path program 1 times [2023-11-12 02:18:00,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:00,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582533182] [2023-11-12 02:18:00,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:00,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:00,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:00,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:18:00,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:00,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582533182] [2023-11-12 02:18:00,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582533182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:00,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:00,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:00,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112303251] [2023-11-12 02:18:00,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:00,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:00,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:00,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:00,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:00,874 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:18:00,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:00,984 INFO L93 Difference]: Finished difference Result 178 states and 234 transitions. [2023-11-12 02:18:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:18:00,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-12 02:18:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:00,987 INFO L225 Difference]: With dead ends: 178 [2023-11-12 02:18:00,987 INFO L226 Difference]: Without dead ends: 176 [2023-11-12 02:18:00,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 02:18:00,989 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 79 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:00,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 367 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:18:00,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-12 02:18:01,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 148. [2023-11-12 02:18:01,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 130 states have (on average 1.4076923076923078) internal successors, (183), 136 states have internal predecessors, (183), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:18:01,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2023-11-12 02:18:01,006 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 24 [2023-11-12 02:18:01,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:01,006 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2023-11-12 02:18:01,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:18:01,006 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2023-11-12 02:18:01,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 02:18:01,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:01,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:01,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:18:01,009 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:01,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:01,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1916209998, now seen corresponding path program 1 times [2023-11-12 02:18:01,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:01,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371142375] [2023-11-12 02:18:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:01,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:18:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:01,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-12 02:18:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:18:01,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:01,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371142375] [2023-11-12 02:18:01,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371142375] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:18:01,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969683658] [2023-11-12 02:18:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:01,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:01,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:01,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:01,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:18:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:01,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:18:01,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 02:18:01,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:01,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969683658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:01,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:18:01,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-11-12 02:18:01,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391120472] [2023-11-12 02:18:01,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:01,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:01,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:01,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:01,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:18:01,487 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 02:18:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:01,578 INFO L93 Difference]: Finished difference Result 151 states and 199 transitions. [2023-11-12 02:18:01,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:18:01,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2023-11-12 02:18:01,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:01,581 INFO L225 Difference]: With dead ends: 151 [2023-11-12 02:18:01,581 INFO L226 Difference]: Without dead ends: 150 [2023-11-12 02:18:01,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:18:01,582 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 34 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:01,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 325 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:18:01,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-12 02:18:01,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2023-11-12 02:18:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 130 states have (on average 1.4) internal successors, (182), 135 states have internal predecessors, (182), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:18:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 195 transitions. [2023-11-12 02:18:01,603 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 195 transitions. Word has length 41 [2023-11-12 02:18:01,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:01,604 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 195 transitions. [2023-11-12 02:18:01,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 02:18:01,604 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 195 transitions. [2023-11-12 02:18:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-12 02:18:01,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:01,606 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:01,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:01,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:01,814 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:01,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:01,814 INFO L85 PathProgramCache]: Analyzing trace with hash -727031999, now seen corresponding path program 1 times [2023-11-12 02:18:01,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:01,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531921857] [2023-11-12 02:18:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:01,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:02,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:02,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:18:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-12 02:18:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:02,072 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:18:02,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:02,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531921857] [2023-11-12 02:18:02,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531921857] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:18:02,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167481628] [2023-11-12 02:18:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:02,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:02,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:02,075 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:02,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:18:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:02,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-12 02:18:02,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:18:02,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:18:02,464 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:18:02,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167481628] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:18:02,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:18:02,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 9] total 18 [2023-11-12 02:18:02,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886095441] [2023-11-12 02:18:02,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:18:02,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 02:18:02,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:02,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 02:18:02,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:18:02,467 INFO L87 Difference]: Start difference. First operand 147 states and 195 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 14 states have internal predecessors, (43), 4 states have call successors, (8), 4 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-12 02:18:02,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:02,938 INFO L93 Difference]: Finished difference Result 320 states and 418 transitions. [2023-11-12 02:18:02,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-12 02:18:02,939 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 14 states have internal predecessors, (43), 4 states have call successors, (8), 4 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 42 [2023-11-12 02:18:02,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:02,941 INFO L225 Difference]: With dead ends: 320 [2023-11-12 02:18:02,941 INFO L226 Difference]: Without dead ends: 178 [2023-11-12 02:18:02,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2023-11-12 02:18:02,943 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 59 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:02,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1231 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:18:02,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-12 02:18:02,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 128. [2023-11-12 02:18:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 113 states have internal predecessors, (147), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-12 02:18:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 165 transitions. [2023-11-12 02:18:02,955 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 165 transitions. Word has length 42 [2023-11-12 02:18:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:02,956 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 165 transitions. [2023-11-12 02:18:02,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 14 states have internal predecessors, (43), 4 states have call successors, (8), 4 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-12 02:18:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2023-11-12 02:18:02,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:18:02,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:02,957 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:02,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:03,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:03,164 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:03,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:03,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1914150266, now seen corresponding path program 1 times [2023-11-12 02:18:03,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:03,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300441612] [2023-11-12 02:18:03,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:03,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:18:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:18:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:18:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:18:03,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:03,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300441612] [2023-11-12 02:18:03,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300441612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:03,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:03,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:18:03,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075006046] [2023-11-12 02:18:03,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:03,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:18:03,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:03,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:18:03,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:18:03,396 INFO L87 Difference]: Start difference. First operand 128 states and 165 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:18:03,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:03,516 INFO L93 Difference]: Finished difference Result 224 states and 287 transitions. [2023-11-12 02:18:03,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:18:03,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2023-11-12 02:18:03,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:03,519 INFO L225 Difference]: With dead ends: 224 [2023-11-12 02:18:03,519 INFO L226 Difference]: Without dead ends: 172 [2023-11-12 02:18:03,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:18:03,520 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 106 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:03,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 799 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:18:03,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-12 02:18:03,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2023-11-12 02:18:03,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 140 states have (on average 1.3571428571428572) internal successors, (190), 146 states have internal predecessors, (190), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (15), 13 states have call predecessors, (15), 12 states have call successors, (15) [2023-11-12 02:18:03,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2023-11-12 02:18:03,541 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 219 transitions. Word has length 50 [2023-11-12 02:18:03,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:03,541 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 219 transitions. [2023-11-12 02:18:03,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:18:03,541 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 219 transitions. [2023-11-12 02:18:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-12 02:18:03,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:03,543 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:03,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:18:03,543 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:03,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:03,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1697734770, now seen corresponding path program 1 times [2023-11-12 02:18:03,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:03,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302524024] [2023-11-12 02:18:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:18:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,710 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:18:03,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:03,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302524024] [2023-11-12 02:18:03,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302524024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:03,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:03,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:18:03,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997606559] [2023-11-12 02:18:03,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:03,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:18:03,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:03,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:18:03,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:18:03,715 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:03,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:03,792 INFO L93 Difference]: Finished difference Result 258 states and 335 transitions. [2023-11-12 02:18:03,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:18:03,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2023-11-12 02:18:03,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:03,795 INFO L225 Difference]: With dead ends: 258 [2023-11-12 02:18:03,795 INFO L226 Difference]: Without dead ends: 179 [2023-11-12 02:18:03,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:18:03,797 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 12 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:03,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 682 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:18:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-12 02:18:03,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 171. [2023-11-12 02:18:03,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 144 states have (on average 1.3472222222222223) internal successors, (194), 150 states have internal predecessors, (194), 13 states have call successors, (13), 8 states have call predecessors, (13), 9 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2023-11-12 02:18:03,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 221 transitions. [2023-11-12 02:18:03,812 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 221 transitions. Word has length 46 [2023-11-12 02:18:03,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:03,813 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 221 transitions. [2023-11-12 02:18:03,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 221 transitions. [2023-11-12 02:18:03,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:18:03,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:03,814 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:03,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:18:03,815 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:03,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:03,815 INFO L85 PathProgramCache]: Analyzing trace with hash 466350974, now seen corresponding path program 1 times [2023-11-12 02:18:03,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:03,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088554421] [2023-11-12 02:18:03,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:03,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:04,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:18:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:04,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:18:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:18:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:18:04,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:04,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088554421] [2023-11-12 02:18:04,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088554421] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:18:04,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160011960] [2023-11-12 02:18:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:04,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:04,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:04,044 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:04,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:18:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:04,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-12 02:18:04,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:18:04,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:18:04,378 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:18:04,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160011960] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:18:04,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:18:04,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 16 [2023-11-12 02:18:04,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885391973] [2023-11-12 02:18:04,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:18:04,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 02:18:04,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:04,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 02:18:04,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:18:04,382 INFO L87 Difference]: Start difference. First operand 171 states and 221 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-12 02:18:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:04,711 INFO L93 Difference]: Finished difference Result 297 states and 381 transitions. [2023-11-12 02:18:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-12 02:18:04,712 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 50 [2023-11-12 02:18:04,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:04,713 INFO L225 Difference]: With dead ends: 297 [2023-11-12 02:18:04,714 INFO L226 Difference]: Without dead ends: 193 [2023-11-12 02:18:04,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2023-11-12 02:18:04,717 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 52 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:04,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1034 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:18:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-12 02:18:04,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 158. [2023-11-12 02:18:04,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 135 states have (on average 1.348148148148148) internal successors, (182), 140 states have internal predecessors, (182), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-12 02:18:04,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 203 transitions. [2023-11-12 02:18:04,732 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 203 transitions. Word has length 50 [2023-11-12 02:18:04,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:04,733 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 203 transitions. [2023-11-12 02:18:04,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-12 02:18:04,733 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 203 transitions. [2023-11-12 02:18:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:18:04,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:04,734 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:04,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:04,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:04,941 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:04,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:04,941 INFO L85 PathProgramCache]: Analyzing trace with hash -141415071, now seen corresponding path program 2 times [2023-11-12 02:18:04,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:04,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828717995] [2023-11-12 02:18:04,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:04,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:05,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:05,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:05,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:18:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:05,127 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:18:05,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:05,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828717995] [2023-11-12 02:18:05,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828717995] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:18:05,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802582044] [2023-11-12 02:18:05,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:18:05,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:05,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:05,129 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:05,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:18:05,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:18:05,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:18:05,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-12 02:18:05,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:05,412 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:18:05,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:05,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802582044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:05,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:18:05,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 13 [2023-11-12 02:18:05,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157346415] [2023-11-12 02:18:05,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:05,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:18:05,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:05,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:18:05,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:18:05,415 INFO L87 Difference]: Start difference. First operand 158 states and 203 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:05,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:05,755 INFO L93 Difference]: Finished difference Result 295 states and 380 transitions. [2023-11-12 02:18:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:18:05,756 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-12 02:18:05,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:05,758 INFO L225 Difference]: With dead ends: 295 [2023-11-12 02:18:05,758 INFO L226 Difference]: Without dead ends: 248 [2023-11-12 02:18:05,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:18:05,760 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 193 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:05,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1169 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:18:05,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-12 02:18:05,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 203. [2023-11-12 02:18:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 175 states have (on average 1.3657142857142857) internal successors, (239), 181 states have internal predecessors, (239), 14 states have call successors, (14), 8 states have call predecessors, (14), 9 states have return successors, (14), 13 states have call predecessors, (14), 12 states have call successors, (14) [2023-11-12 02:18:05,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 267 transitions. [2023-11-12 02:18:05,779 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 267 transitions. Word has length 50 [2023-11-12 02:18:05,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:05,780 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 267 transitions. [2023-11-12 02:18:05,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:05,781 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 267 transitions. [2023-11-12 02:18:05,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:18:05,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:05,782 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:05,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:05,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:05,997 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:05,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:05,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1729762973, now seen corresponding path program 1 times [2023-11-12 02:18:05,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:05,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358088285] [2023-11-12 02:18:05,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:05,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:06,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:06,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:06,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:06,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:18:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:06,364 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:18:06,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:06,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358088285] [2023-11-12 02:18:06,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358088285] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:18:06,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449319173] [2023-11-12 02:18:06,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:06,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:06,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:06,367 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:06,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:18:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:06,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-12 02:18:06,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:18:06,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:06,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449319173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:06,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:18:06,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 16 [2023-11-12 02:18:06,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830503286] [2023-11-12 02:18:06,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:06,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:18:06,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:06,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:18:06,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:18:06,644 INFO L87 Difference]: Start difference. First operand 203 states and 267 transitions. Second operand has 12 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-12 02:18:07,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:07,104 INFO L93 Difference]: Finished difference Result 397 states and 536 transitions. [2023-11-12 02:18:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:18:07,107 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2023-11-12 02:18:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:07,109 INFO L225 Difference]: With dead ends: 397 [2023-11-12 02:18:07,109 INFO L226 Difference]: Without dead ends: 303 [2023-11-12 02:18:07,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2023-11-12 02:18:07,111 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 181 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:07,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 979 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:18:07,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-12 02:18:07,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 281. [2023-11-12 02:18:07,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 243 states have (on average 1.3497942386831276) internal successors, (328), 249 states have internal predecessors, (328), 22 states have call successors, (22), 10 states have call predecessors, (22), 11 states have return successors, (24), 21 states have call predecessors, (24), 19 states have call successors, (24) [2023-11-12 02:18:07,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 374 transitions. [2023-11-12 02:18:07,136 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 374 transitions. Word has length 50 [2023-11-12 02:18:07,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:07,136 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 374 transitions. [2023-11-12 02:18:07,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-12 02:18:07,136 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 374 transitions. [2023-11-12 02:18:07,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 02:18:07,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:07,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:07,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:07,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-12 02:18:07,349 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:07,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:07,349 INFO L85 PathProgramCache]: Analyzing trace with hash -623168593, now seen corresponding path program 1 times [2023-11-12 02:18:07,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:07,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593780904] [2023-11-12 02:18:07,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:07,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:18:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:18:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:18:07,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:07,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593780904] [2023-11-12 02:18:07,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593780904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:07,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:07,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:18:07,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053422833] [2023-11-12 02:18:07,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:07,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:18:07,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:07,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:18:07,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:18:07,581 INFO L87 Difference]: Start difference. First operand 281 states and 374 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:18:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:07,664 INFO L93 Difference]: Finished difference Result 294 states and 383 transitions. [2023-11-12 02:18:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:18:07,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2023-11-12 02:18:07,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:07,667 INFO L225 Difference]: With dead ends: 294 [2023-11-12 02:18:07,667 INFO L226 Difference]: Without dead ends: 242 [2023-11-12 02:18:07,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:18:07,669 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 4 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:07,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 703 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:18:07,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-11-12 02:18:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2023-11-12 02:18:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 209 states have (on average 1.354066985645933) internal successors, (283), 215 states have internal predecessors, (283), 19 states have call successors, (19), 8 states have call predecessors, (19), 9 states have return successors, (20), 18 states have call predecessors, (20), 17 states have call successors, (20) [2023-11-12 02:18:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 322 transitions. [2023-11-12 02:18:07,690 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 322 transitions. Word has length 54 [2023-11-12 02:18:07,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:07,690 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 322 transitions. [2023-11-12 02:18:07,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:18:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 322 transitions. [2023-11-12 02:18:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 02:18:07,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:07,692 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:07,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-12 02:18:07,692 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:07,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash 47637766, now seen corresponding path program 1 times [2023-11-12 02:18:07,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:07,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585434131] [2023-11-12 02:18:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:07,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-12 02:18:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:18:07,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:07,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585434131] [2023-11-12 02:18:07,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585434131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:07,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:07,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:18:07,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207613005] [2023-11-12 02:18:07,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:07,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:18:07,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:18:07,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:18:07,782 INFO L87 Difference]: Start difference. First operand 242 states and 322 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:07,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:07,829 INFO L93 Difference]: Finished difference Result 380 states and 507 transitions. [2023-11-12 02:18:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:18:07,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-12 02:18:07,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:07,832 INFO L225 Difference]: With dead ends: 380 [2023-11-12 02:18:07,832 INFO L226 Difference]: Without dead ends: 248 [2023-11-12 02:18:07,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:18:07,834 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 7 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:07,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 181 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:18:07,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-12 02:18:07,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2023-11-12 02:18:07,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 213 states have (on average 1.3474178403755868) internal successors, (287), 219 states have internal predecessors, (287), 19 states have call successors, (19), 8 states have call predecessors, (19), 9 states have return successors, (20), 18 states have call predecessors, (20), 17 states have call successors, (20) [2023-11-12 02:18:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 326 transitions. [2023-11-12 02:18:07,864 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 326 transitions. Word has length 56 [2023-11-12 02:18:07,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:07,865 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 326 transitions. [2023-11-12 02:18:07,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 326 transitions. [2023-11-12 02:18:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 02:18:07,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:07,867 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:07,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-12 02:18:07,867 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:07,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:07,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1433841160, now seen corresponding path program 1 times [2023-11-12 02:18:07,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:07,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961346707] [2023-11-12 02:18:07,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:07,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:08,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:08,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:08,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:08,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-12 02:18:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:08,049 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:18:08,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:08,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961346707] [2023-11-12 02:18:08,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961346707] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:18:08,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513269346] [2023-11-12 02:18:08,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:08,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:08,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:08,051 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:08,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:18:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:08,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:18:08,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:18:08,266 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:18:08,387 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:18:08,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513269346] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:18:08,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:18:08,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2023-11-12 02:18:08,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030796813] [2023-11-12 02:18:08,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:18:08,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:18:08,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:08,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:18:08,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:18:08,390 INFO L87 Difference]: Start difference. First operand 246 states and 326 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-12 02:18:08,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:08,525 INFO L93 Difference]: Finished difference Result 338 states and 445 transitions. [2023-11-12 02:18:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:18:08,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) Word has length 56 [2023-11-12 02:18:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:08,527 INFO L225 Difference]: With dead ends: 338 [2023-11-12 02:18:08,528 INFO L226 Difference]: Without dead ends: 291 [2023-11-12 02:18:08,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:18:08,529 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 149 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:08,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1045 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:18:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-12 02:18:08,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 284. [2023-11-12 02:18:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 247 states have (on average 1.3643724696356276) internal successors, (337), 253 states have internal predecessors, (337), 22 states have call successors, (22), 9 states have call predecessors, (22), 10 states have return successors, (23), 21 states have call predecessors, (23), 20 states have call successors, (23) [2023-11-12 02:18:08,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 382 transitions. [2023-11-12 02:18:08,550 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 382 transitions. Word has length 56 [2023-11-12 02:18:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:08,551 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 382 transitions. [2023-11-12 02:18:08,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-12 02:18:08,551 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 382 transitions. [2023-11-12 02:18:08,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 02:18:08,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:08,552 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:08,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:08,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:08,758 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:08,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:08,758 INFO L85 PathProgramCache]: Analyzing trace with hash -154506742, now seen corresponding path program 1 times [2023-11-12 02:18:08,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:08,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651357672] [2023-11-12 02:18:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:08,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-12 02:18:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 02:18:09,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:09,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651357672] [2023-11-12 02:18:09,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651357672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:09,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:09,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:09,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974401945] [2023-11-12 02:18:09,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:09,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:09,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:09,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:09,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:09,229 INFO L87 Difference]: Start difference. First operand 284 states and 382 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:09,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:09,306 INFO L93 Difference]: Finished difference Result 331 states and 444 transitions. [2023-11-12 02:18:09,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:18:09,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-12 02:18:09,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:09,310 INFO L225 Difference]: With dead ends: 331 [2023-11-12 02:18:09,310 INFO L226 Difference]: Without dead ends: 328 [2023-11-12 02:18:09,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:18:09,311 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 74 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:09,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 281 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:18:09,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-12 02:18:09,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 294. [2023-11-12 02:18:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 256 states have (on average 1.33984375) internal successors, (343), 260 states have internal predecessors, (343), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (26), 24 states have call predecessors, (26), 23 states have call successors, (26) [2023-11-12 02:18:09,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 394 transitions. [2023-11-12 02:18:09,345 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 394 transitions. Word has length 56 [2023-11-12 02:18:09,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:09,345 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 394 transitions. [2023-11-12 02:18:09,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:09,346 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 394 transitions. [2023-11-12 02:18:09,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 02:18:09,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:09,352 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:09,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-12 02:18:09,352 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:09,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:09,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1336470727, now seen corresponding path program 1 times [2023-11-12 02:18:09,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:09,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073706509] [2023-11-12 02:18:09,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:09,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:18:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-12 02:18:09,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:09,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073706509] [2023-11-12 02:18:09,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073706509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:09,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:09,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:18:09,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677237425] [2023-11-12 02:18:09,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:09,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:18:09,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:09,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:18:09,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:18:09,437 INFO L87 Difference]: Start difference. First operand 294 states and 394 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:09,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:09,476 INFO L93 Difference]: Finished difference Result 303 states and 403 transitions. [2023-11-12 02:18:09,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:18:09,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2023-11-12 02:18:09,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:09,479 INFO L225 Difference]: With dead ends: 303 [2023-11-12 02:18:09,479 INFO L226 Difference]: Without dead ends: 298 [2023-11-12 02:18:09,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 02:18:09,482 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 23 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:09,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 150 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:18:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-11-12 02:18:09,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 289. [2023-11-12 02:18:09,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 254 states have (on average 1.2834645669291338) internal successors, (326), 256 states have internal predecessors, (326), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (25), 23 states have call predecessors, (25), 22 states have call successors, (25) [2023-11-12 02:18:09,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 375 transitions. [2023-11-12 02:18:09,512 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 375 transitions. Word has length 58 [2023-11-12 02:18:09,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:09,512 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 375 transitions. [2023-11-12 02:18:09,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:18:09,513 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 375 transitions. [2023-11-12 02:18:09,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 02:18:09,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:09,515 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:09,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-12 02:18:09,516 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:09,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:09,517 INFO L85 PathProgramCache]: Analyzing trace with hash -360872486, now seen corresponding path program 1 times [2023-11-12 02:18:09,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:09,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485452427] [2023-11-12 02:18:09,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:09,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:18:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:18:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-12 02:18:09,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:09,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485452427] [2023-11-12 02:18:09,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485452427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:09,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:09,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:18:09,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698574692] [2023-11-12 02:18:09,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:09,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:18:09,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:18:09,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:18:09,711 INFO L87 Difference]: Start difference. First operand 289 states and 375 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:18:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:09,868 INFO L93 Difference]: Finished difference Result 594 states and 777 transitions. [2023-11-12 02:18:09,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:18:09,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 67 [2023-11-12 02:18:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:09,872 INFO L225 Difference]: With dead ends: 594 [2023-11-12 02:18:09,872 INFO L226 Difference]: Without dead ends: 461 [2023-11-12 02:18:09,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:18:09,873 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 33 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:09,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 646 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:18:09,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-12 02:18:09,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 354. [2023-11-12 02:18:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 314 states have (on average 1.2611464968152866) internal successors, (396), 316 states have internal predecessors, (396), 29 states have call successors, (29), 9 states have call predecessors, (29), 10 states have return successors, (30), 28 states have call predecessors, (30), 27 states have call successors, (30) [2023-11-12 02:18:09,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 455 transitions. [2023-11-12 02:18:09,935 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 455 transitions. Word has length 67 [2023-11-12 02:18:09,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:09,936 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 455 transitions. [2023-11-12 02:18:09,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:18:09,936 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 455 transitions. [2023-11-12 02:18:09,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 02:18:09,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:09,938 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:09,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-12 02:18:09,939 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:09,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:09,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1381940840, now seen corresponding path program 1 times [2023-11-12 02:18:09,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:09,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114985815] [2023-11-12 02:18:09,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:09,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:18:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:18:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-12 02:18:10,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:10,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114985815] [2023-11-12 02:18:10,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114985815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:10,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:10,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:18:10,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381464033] [2023-11-12 02:18:10,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:10,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:18:10,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:10,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:18:10,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:18:10,053 INFO L87 Difference]: Start difference. First operand 354 states and 455 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:18:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:10,081 INFO L93 Difference]: Finished difference Result 503 states and 650 transitions. [2023-11-12 02:18:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:18:10,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2023-11-12 02:18:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:10,084 INFO L225 Difference]: With dead ends: 503 [2023-11-12 02:18:10,085 INFO L226 Difference]: Without dead ends: 358 [2023-11-12 02:18:10,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 02:18:10,086 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 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 02:18:10,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:18:10,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-12 02:18:10,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 345. [2023-11-12 02:18:10,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 306 states have (on average 1.2581699346405228) internal successors, (385), 308 states have internal predecessors, (385), 28 states have call successors, (28), 9 states have call predecessors, (28), 10 states have return successors, (29), 27 states have call predecessors, (29), 26 states have call successors, (29) [2023-11-12 02:18:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 442 transitions. [2023-11-12 02:18:10,114 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 442 transitions. Word has length 67 [2023-11-12 02:18:10,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:10,115 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 442 transitions. [2023-11-12 02:18:10,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 02:18:10,116 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 442 transitions. [2023-11-12 02:18:10,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 02:18:10,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:10,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:10,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-12 02:18:10,119 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 02:18:10,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:10,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2079762577, now seen corresponding path program 1 times [2023-11-12 02:18:10,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:10,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926601110] [2023-11-12 02:18:10,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:10,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:18:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:18:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:18:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:18:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,562 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-12 02:18:10,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:10,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926601110] [2023-11-12 02:18:10,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926601110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:10,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:10,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 02:18:10,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580276138] [2023-11-12 02:18:10,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:10,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:18:10,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:10,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:18:10,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:18:10,565 INFO L87 Difference]: Start difference. First operand 345 states and 442 transitions. Second operand has 11 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:18:10,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:10,892 INFO L93 Difference]: Finished difference Result 421 states and 541 transitions. [2023-11-12 02:18:10,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:18:10,893 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 68 [2023-11-12 02:18:10,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:10,893 INFO L225 Difference]: With dead ends: 421 [2023-11-12 02:18:10,893 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:18:10,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:18:10,895 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 208 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:10,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 754 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:18:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:18:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:18:10,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:18:10,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2023-11-12 02:18:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:10,896 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:18:10,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:18:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:18:10,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:18:10,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-12 02:18:10,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-12 02:18:10,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-12 02:18:10,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-12 02:18:10,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-12 02:18:10,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-12 02:18:10,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-12 02:18:10,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-12 02:18:10,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-12 02:18:10,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-12 02:18:10,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-12 02:18:10,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-12 02:18:10,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-12 02:18:10,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-12 02:18:10,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-12 02:18:10,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-12 02:18:10,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-12 02:18:10,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:18:11,748 INFO L899 garLoopResultBuilder]: For program point L60(lines 58 73) no Hoare annotation was computed. [2023-11-12 02:18:11,748 INFO L899 garLoopResultBuilder]: For program point base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-12 02:18:11,748 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 52) no Hoare annotation was computed. [2023-11-12 02:18:11,748 INFO L895 garLoopResultBuilder]: At program point L48-1(lines 38 53) the Hoare annotation is: (and (or (< 0 (mod |base2flt_#in~m| 4294967296)) (not (= |base2flt_#in~e| 0))) (or (and (<= base2flt_~e 127) (<= base2flt_~m (+ 33554431 (* (div base2flt_~m 4294967296) 4294967296)))) (< 127 |base2flt_#in~e|) (< (+ 128 |base2flt_#in~e|) 0))) [2023-11-12 02:18:11,749 INFO L899 garLoopResultBuilder]: For program point base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2023-11-12 02:18:11,749 INFO L899 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2023-11-12 02:18:11,749 INFO L899 garLoopResultBuilder]: For program point L77-3(line 77) no Hoare annotation was computed. [2023-11-12 02:18:11,749 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 76) no Hoare annotation was computed. [2023-11-12 02:18:11,749 INFO L899 garLoopResultBuilder]: For program point $Ultimate##27(line 77) no Hoare annotation was computed. [2023-11-12 02:18:11,749 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-11-12 02:18:11,749 INFO L899 garLoopResultBuilder]: For program point base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 78) no Hoare annotation was computed. [2023-11-12 02:18:11,749 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2023-11-12 02:18:11,750 INFO L899 garLoopResultBuilder]: For program point L78-2(line 78) no Hoare annotation was computed. [2023-11-12 02:18:11,750 INFO L899 garLoopResultBuilder]: For program point L78-4(line 78) no Hoare annotation was computed. [2023-11-12 02:18:11,750 INFO L899 garLoopResultBuilder]: For program point L78-6(line 78) no Hoare annotation was computed. [2023-11-12 02:18:11,750 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 73) the Hoare annotation is: (and (or (< 0 (mod |base2flt_#in~m| 4294967296)) (not (= |base2flt_#in~e| 0))) (or (< 127 |base2flt_#in~e|) (and (<= 0 (+ 128 base2flt_~e)) (<= base2flt_~e 127)) (< (+ 128 |base2flt_#in~e|) 0))) [2023-11-12 02:18:11,750 INFO L899 garLoopResultBuilder]: For program point base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2023-11-12 02:18:11,750 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-12 02:18:11,750 INFO L899 garLoopResultBuilder]: For program point base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 78) no Hoare annotation was computed. [2023-11-12 02:18:11,751 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-11-12 02:18:11,751 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 25 83) the Hoare annotation is: true [2023-11-12 02:18:11,751 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-11-12 02:18:11,751 INFO L899 garLoopResultBuilder]: For program point L71-1(line 71) no Hoare annotation was computed. [2023-11-12 02:18:11,751 INFO L899 garLoopResultBuilder]: For program point base2fltFINAL(lines 25 83) no Hoare annotation was computed. [2023-11-12 02:18:11,751 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 35) no Hoare annotation was computed. [2023-11-12 02:18:11,751 INFO L899 garLoopResultBuilder]: For program point L59(lines 58 73) no Hoare annotation was computed. [2023-11-12 02:18:11,751 INFO L899 garLoopResultBuilder]: For program point base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-12 02:18:11,752 INFO L899 garLoopResultBuilder]: For program point base2fltEXIT(lines 25 83) no Hoare annotation was computed. [2023-11-12 02:18:11,752 INFO L899 garLoopResultBuilder]: For program point L80(lines 29 82) no Hoare annotation was computed. [2023-11-12 02:18:11,752 INFO L899 garLoopResultBuilder]: For program point L39(lines 38 53) no Hoare annotation was computed. [2023-11-12 02:18:11,752 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:18:11,752 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 257) no Hoare annotation was computed. [2023-11-12 02:18:11,752 INFO L895 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-12 02:18:11,752 INFO L902 garLoopResultBuilder]: At program point L248-2(lines 248 257) the Hoare annotation is: true [2023-11-12 02:18:11,752 INFO L899 garLoopResultBuilder]: For program point L246-1(line 246) no Hoare annotation was computed. [2023-11-12 02:18:11,753 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-12 02:18:11,753 INFO L899 garLoopResultBuilder]: For program point L244-1(line 244) no Hoare annotation was computed. [2023-11-12 02:18:11,753 INFO L895 garLoopResultBuilder]: At program point L242(line 242) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-12 02:18:11,753 INFO L899 garLoopResultBuilder]: For program point L242-1(line 242) no Hoare annotation was computed. [2023-11-12 02:18:11,753 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:18:11,753 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 226 264) no Hoare annotation was computed. [2023-11-12 02:18:11,753 INFO L899 garLoopResultBuilder]: For program point L259(line 259) no Hoare annotation was computed. [2023-11-12 02:18:11,753 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:18:11,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:18:11,754 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 255) no Hoare annotation was computed. [2023-11-12 02:18:11,754 INFO L899 garLoopResultBuilder]: For program point L251-2(lines 251 255) no Hoare annotation was computed. [2023-11-12 02:18:11,754 INFO L895 garLoopResultBuilder]: At program point L245(line 245) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-12 02:18:11,754 INFO L899 garLoopResultBuilder]: For program point L245-1(line 245) no Hoare annotation was computed. [2023-11-12 02:18:11,754 INFO L895 garLoopResultBuilder]: At program point L243(line 243) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-12 02:18:11,754 INFO L899 garLoopResultBuilder]: For program point L243-1(line 243) no Hoare annotation was computed. [2023-11-12 02:18:11,754 INFO L899 garLoopResultBuilder]: For program point addfltFINAL(lines 84 148) no Hoare annotation was computed. [2023-11-12 02:18:11,755 INFO L899 garLoopResultBuilder]: For program point addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 134) no Hoare annotation was computed. [2023-11-12 02:18:11,755 INFO L899 garLoopResultBuilder]: For program point L118-1(line 118) no Hoare annotation was computed. [2023-11-12 02:18:11,755 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2023-11-12 02:18:11,755 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2023-11-12 02:18:11,755 INFO L899 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2023-11-12 02:18:11,755 INFO L899 garLoopResultBuilder]: For program point addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 113) no Hoare annotation was computed. [2023-11-12 02:18:11,755 INFO L899 garLoopResultBuilder]: For program point L127-2(line 127) no Hoare annotation was computed. [2023-11-12 02:18:11,755 INFO L899 garLoopResultBuilder]: For program point L127-4(lines 127 138) no Hoare annotation was computed. [2023-11-12 02:18:11,756 INFO L895 garLoopResultBuilder]: At program point L127-6(lines 127 138) the Hoare annotation is: (let ((.cse1 (not (= 4294967295 |addflt_#in~a|))) (.cse0 (not (= 4294967295 |addflt_#in~b|))) (.cse2 (= 4294967295 addflt_~b)) (.cse3 (and (<= (div addflt_~a 4294967296) 0) (<= 4294967295 addflt_~a)))) (and (not (= |addflt_#in~b| 0)) (or .cse0 .cse1 .cse2) (<= addflt_~ea~0 128) (or .cse1 .cse3) (<= 0 (+ addflt_~ea~0 2147483648)) (or .cse0 .cse2 .cse3) (not (= |addflt_#in~a| 0)) (<= addflt_~eb~0 addflt_~ea~0))) [2023-11-12 02:18:11,757 INFO L899 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2023-11-12 02:18:11,757 INFO L899 garLoopResultBuilder]: For program point L111-2(line 111) no Hoare annotation was computed. [2023-11-12 02:18:11,758 INFO L899 garLoopResultBuilder]: For program point L111-4(line 111) no Hoare annotation was computed. [2023-11-12 02:18:11,758 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2023-11-12 02:18:11,758 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 101) no Hoare annotation was computed. [2023-11-12 02:18:11,758 INFO L899 garLoopResultBuilder]: For program point L95-2(lines 94 147) no Hoare annotation was computed. [2023-11-12 02:18:11,758 INFO L899 garLoopResultBuilder]: For program point addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 116) no Hoare annotation was computed. [2023-11-12 02:18:11,758 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 125) no Hoare annotation was computed. [2023-11-12 02:18:11,758 INFO L899 garLoopResultBuilder]: For program point L145(lines 94 147) no Hoare annotation was computed. [2023-11-12 02:18:11,758 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 84 148) the Hoare annotation is: true [2023-11-12 02:18:11,759 INFO L899 garLoopResultBuilder]: For program point addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 110) no Hoare annotation was computed. [2023-11-12 02:18:11,759 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2023-11-12 02:18:11,760 INFO L899 garLoopResultBuilder]: For program point L113-1(line 113) no Hoare annotation was computed. [2023-11-12 02:18:11,760 INFO L899 garLoopResultBuilder]: For program point addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 142) no Hoare annotation was computed. [2023-11-12 02:18:11,760 INFO L899 garLoopResultBuilder]: For program point addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 113) no Hoare annotation was computed. [2023-11-12 02:18:11,760 INFO L899 garLoopResultBuilder]: For program point L114(line 114) no Hoare annotation was computed. [2023-11-12 02:18:11,760 INFO L899 garLoopResultBuilder]: For program point L114-2(line 114) no Hoare annotation was computed. [2023-11-12 02:18:11,760 INFO L899 garLoopResultBuilder]: For program point L114-4(line 114) no Hoare annotation was computed. [2023-11-12 02:18:11,761 INFO L899 garLoopResultBuilder]: For program point addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 134) no Hoare annotation was computed. [2023-11-12 02:18:11,761 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse1 (not (= 4294967295 |addflt_#in~a|))) (.cse0 (not (= 4294967295 |addflt_#in~b|))) (.cse2 (= 4294967295 addflt_~b)) (.cse3 (and (<= (div addflt_~a 4294967296) 0) (<= 4294967295 addflt_~a)))) (and (not (= |addflt_#in~b| 0)) (<= addflt_~ea~0 127) (or .cse0 .cse1 (and .cse2 (<= 127 addflt_~eb~0))) (or .cse1 .cse3) (<= 0 (+ addflt_~ea~0 2147483648)) (or .cse0 .cse2 .cse3) (<= addflt_~ea~0 (+ 2147483647 addflt_~eb~0)) (not (= |addflt_#in~a| 0)))) [2023-11-12 02:18:11,762 INFO L899 garLoopResultBuilder]: For program point L115-1(line 115) no Hoare annotation was computed. [2023-11-12 02:18:11,763 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2023-11-12 02:18:11,763 INFO L899 garLoopResultBuilder]: For program point addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 110) no Hoare annotation was computed. [2023-11-12 02:18:11,763 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2023-11-12 02:18:11,763 INFO L899 garLoopResultBuilder]: For program point addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 142) no Hoare annotation was computed. [2023-11-12 02:18:11,763 INFO L899 garLoopResultBuilder]: For program point addfltEXIT(lines 84 148) no Hoare annotation was computed. [2023-11-12 02:18:11,764 INFO L899 garLoopResultBuilder]: For program point addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 116) no Hoare annotation was computed. [2023-11-12 02:18:11,764 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2023-11-12 02:18:11,764 INFO L899 garLoopResultBuilder]: For program point L117-2(lines 108 119) no Hoare annotation was computed. [2023-11-12 02:18:11,764 INFO L899 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2023-11-12 02:18:11,764 INFO L899 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2023-11-12 02:18:11,764 INFO L899 garLoopResultBuilder]: For program point L142-2(line 142) no Hoare annotation was computed. [2023-11-12 02:18:11,764 INFO L899 garLoopResultBuilder]: For program point L142-4(line 142) no Hoare annotation was computed. [2023-11-12 02:18:11,764 INFO L899 garLoopResultBuilder]: For program point L142-6(line 142) no Hoare annotation was computed. [2023-11-12 02:18:11,765 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2023-11-12 02:18:11,765 INFO L899 garLoopResultBuilder]: For program point L134-1(line 134) no Hoare annotation was computed. [2023-11-12 02:18:11,765 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 19) no Hoare annotation was computed. [2023-11-12 02:18:11,765 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 16 21) no Hoare annotation was computed. [2023-11-12 02:18:11,765 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-11-12 02:18:11,765 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 16 21) no Hoare annotation was computed. [2023-11-12 02:18:11,765 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 21) the Hoare annotation is: true [2023-11-12 02:18:11,766 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2023-11-12 02:18:11,770 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:11,772 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:18:11,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:18:11 BoogieIcfgContainer [2023-11-12 02:18:11,789 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:18:11,790 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:18:11,790 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:18:11,790 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:18:11,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:56" (3/4) ... [2023-11-12 02:18:11,793 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:18:11,797 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt [2023-11-12 02:18:11,797 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure addflt [2023-11-12 02:18:11,818 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-12 02:18:11,826 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2023-11-12 02:18:11,826 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-12 02:18:11,827 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:18:11,827 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:18:11,856 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && ((((e <= 127) && (m <= (33554431 + ((m / 4294967296) * 4294967296)))) || (127 < \old(e))) || ((128 + \old(e)) < 0))) [2023-11-12 02:18:11,856 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && (((127 < \old(e)) || ((0 <= (128 + e)) && (e <= 127))) || ((128 + \old(e)) < 0))) [2023-11-12 02:18:11,895 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && ((((e <= 127) && (m <= (33554431 + ((m / 4294967296) * 4294967296)))) || (127 < \old(e))) || ((128 + \old(e)) < 0))) [2023-11-12 02:18:11,896 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && (((127 < \old(e)) || ((0 <= (128 + e)) && (e <= 127))) || ((128 + \old(e)) < 0))) [2023-11-12 02:18:11,938 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:18:11,938 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:18:11,938 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:18:11,939 INFO L158 Benchmark]: Toolchain (without parser) took 16858.05ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 119.5MB in the beginning and 200.9MB in the end (delta: -81.4MB). Peak memory consumption was 125.2MB. Max. memory is 16.1GB. [2023-11-12 02:18:11,940 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 113.2MB. Free memory was 64.1MB in the beginning and 63.9MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:18:11,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.45ms. Allocated memory is still 163.6MB. Free memory was 119.2MB in the beginning and 106.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:18:11,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.06ms. Allocated memory is still 163.6MB. Free memory was 106.1MB in the beginning and 104.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:18:11,941 INFO L158 Benchmark]: Boogie Preprocessor took 68.45ms. Allocated memory is still 163.6MB. Free memory was 104.5MB in the beginning and 103.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:18:11,941 INFO L158 Benchmark]: RCFGBuilder took 983.23ms. Allocated memory is still 163.6MB. Free memory was 103.1MB in the beginning and 129.4MB in the end (delta: -26.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:18:11,942 INFO L158 Benchmark]: TraceAbstraction took 15152.95ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 129.1MB in the beginning and 71.9MB in the end (delta: 57.2MB). Peak memory consumption was 132.7MB. Max. memory is 16.1GB. [2023-11-12 02:18:11,942 INFO L158 Benchmark]: Witness Printer took 148.77ms. Allocated memory is still 237.0MB. Free memory was 71.9MB in the beginning and 200.9MB in the end (delta: -129.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:18:11,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 113.2MB. Free memory was 64.1MB in the beginning and 63.9MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.45ms. Allocated memory is still 163.6MB. Free memory was 119.2MB in the beginning and 106.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.06ms. Allocated memory is still 163.6MB. Free memory was 106.1MB in the beginning and 104.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.45ms. Allocated memory is still 163.6MB. Free memory was 104.5MB in the beginning and 103.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 983.23ms. Allocated memory is still 163.6MB. Free memory was 103.1MB in the beginning and 129.4MB in the end (delta: -26.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 15152.95ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 129.1MB in the beginning and 71.9MB in the end (delta: 57.2MB). Peak memory consumption was 132.7MB. Max. memory is 16.1GB. * Witness Printer took 148.77ms. Allocated memory is still 237.0MB. Free memory was 71.9MB in the beginning and 200.9MB in the end (delta: -129.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 113]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 113]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 116]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 116]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 134]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 134]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 142]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 142]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 102 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 15.1s, OverallIterations: 25, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1677 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1645 mSDsluCounter, 13058 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10516 mSDsCounter, 147 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2361 IncrementalHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 147 mSolverCounterUnsat, 2542 mSDtfsCounter, 2361 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 830 GetRequests, 628 SyntacticMatches, 4 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=23, InterpolantAutomatonStates: 175, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 25 MinimizatonAttempts, 558 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 207 PreInvPairs, 271 NumberOfFragments, 283 HoareAnnotationTreeSize, 207 FomulaSimplifications, 1530 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 13 FomulaSimplificationsInter, 1792 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 1313 NumberOfCodeBlocks, 1295 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1424 ConstructedInterpolants, 3 QuantifiedInterpolants, 2673 SizeOfPredicates, 21 NumberOfNonLiveVariables, 984 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 37 InterpolantComputations, 22 PerfectInterpolantSequences, 417/479 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && ((((e <= 127) && (m <= (33554431 + ((m / 4294967296) * 4294967296)))) || (127 < \old(e))) || ((128 + \old(e)) < 0))) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && (((127 < \old(e)) || ((0 <= (128 + e)) && (e <= 127))) || ((128 + \old(e)) < 0))) RESULT: Ultimate proved your program to be correct! [2023-11-12 02:18:11,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6114f8b-0c00-4786-9c61-dbc7bc796bc6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE